278450640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:522

約数の個数: 240

約数和(自身を含む): 1023684480

約数和(自身を除く): 745233840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 71, 72, 78, 80, 90, 104, 117, 120, 130, 142, 144, 156, 180, 195, 208, 213, 234, 240, 260, 284, 312, 355, 360, 390, 419, 426, 468, 520, 568, 585, 624, 639, 710, 720, 780, 838, 852, 923, 936, 1040, 1065, 1136, 1170, 1257, 1278, 1420, 1560, 1676, 1704, 1846, 1872, 2095, 2130, 2340, 2514, 2556, 2769, 2840, 3120, 3195, 3352, 3408, 3692, 3771, 4190, 4260, 4615, 4680, 5028, 5112, 5447, 5538, 5680, 6285, 6390, 6704, 7384, 7542, 8307, 8380, 8520, 9230, 9360, 10056, 10224, 10894, 11076, 12570, 12780, 13845, 14768, 15084, 16341, 16614, 16760, 17040, 18460, 18855, 20112, 21788, 22152, 25140, 25560, 27235, 27690, 29749, 30168, 32682, 33228, 33520, 36920, 37710, 41535, 43576, 44304, 49023, 50280, 51120, 54470, 55380, 59498, 60336, 65364, 66456, 73840, 75420, 81705, 83070, 87152, 89247, 98046, 100560, 108940, 110760, 118996, 130728, 132912, 148745, 150840, 163410, 166140, 178494, 196092, 217880, 221520, 237992, 245115, 261456, 267741, 297490, 301680, 326820, 332280, 356988, 386737, 392184, 435760, 446235, 475984, 490230, 535482, 594980, 653640, 664560, 713976, 773474, 784368, 892470, 980460, 1070964, 1160211, 1189960, 1307280, 1338705, 1427952, 1546948, 1784940, 1933685, 1960920, 2141928, 2320422, 2379920, 2677410, 3093896, 3480633, 3569880, 3867370, 3921840, 4283856, 4640844, 5354820, 5801055, 6187792, 6961266, 7139760, 7734740, 9281688, 10709640, 11602110, 13922532, 15469480, 17403165, 18563376, 21419280, 23204220, 27845064, 30938960, 34806330, 46408440, 55690128, 69612660, 92816880, 139225320, 278450640]

約数ペア:

[(1, 278450640), (2, 139225320), (3, 92816880), (4, 69612660), (5, 55690128), (6, 46408440), (8, 34806330), (9, 30938960), (10, 27845064), (12, 23204220), (13, 21419280), (15, 18563376), (16, 17403165), (18, 15469480), (20, 13922532), (24, 11602110), (26, 10709640), (30, 9281688), (36, 7734740), (39, 7139760), (40, 6961266), (45, 6187792), (48, 5801055), (52, 5354820), (60, 4640844), (65, 4283856), (71, 3921840), (72, 3867370), (78, 3569880), (80, 3480633), (90, 3093896), (104, 2677410), (117, 2379920), (120, 2320422), (130, 2141928), (142, 1960920), (144, 1933685), (156, 1784940), (180, 1546948), (195, 1427952), (208, 1338705), (213, 1307280), (234, 1189960), (240, 1160211), (260, 1070964), (284, 980460), (312, 892470), (355, 784368), (360, 773474), (390, 713976), (419, 664560), (426, 653640), (468, 594980), (520, 535482), (568, 490230), (585, 475984), (624, 446235), (639, 435760), (710, 392184), (720, 386737), (780, 356988), (838, 332280), (852, 326820), (923, 301680), (936, 297490), (1040, 267741), (1065, 261456), (1136, 245115), (1170, 237992), (1257, 221520), (1278, 217880), (1420, 196092), (1560, 178494), (1676, 166140), (1704, 163410), (1846, 150840), (1872, 148745), (2095, 132912), (2130, 130728), (2340, 118996), (2514, 110760), (2556, 108940), (2769, 100560), (2840, 98046), (3120, 89247), (3195, 87152), (3352, 83070), (3408, 81705), (3692, 75420), (3771, 73840), (4190, 66456), (4260, 65364), (4615, 60336), (4680, 59498), (5028, 55380), (5112, 54470), (5447, 51120), (5538, 50280), (5680, 49023), (6285, 44304), (6390, 43576), (6704, 41535), (7384, 37710), (7542, 36920), (8307, 33520), (8380, 33228), (8520, 32682), (9230, 30168), (9360, 29749), (10056, 27690), (10224, 27235), (10894, 25560), (11076, 25140), (12570, 22152), (12780, 21788), (13845, 20112), (14768, 18855), (15084, 18460), (16341, 17040), (16614, 16760)]