240480640

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:121

約数の個数: 192

約数和(自身を含む): 656333280

約数和(自身を除く): 415852640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 31, 32, 34, 40, 46, 62, 64, 68, 80, 85, 92, 115, 124, 128, 136, 155, 160, 170, 184, 230, 248, 272, 310, 320, 340, 368, 391, 460, 496, 527, 544, 620, 640, 680, 713, 736, 782, 920, 961, 992, 1054, 1088, 1240, 1360, 1426, 1472, 1564, 1840, 1922, 1955, 1984, 2108, 2176, 2480, 2635, 2720, 2852, 2944, 3128, 3565, 3680, 3844, 3910, 3968, 4216, 4805, 4960, 5270, 5440, 5704, 6256, 7130, 7360, 7688, 7820, 8432, 9610, 9920, 10540, 10880, 11408, 12121, 12512, 14260, 14720, 15376, 15640, 16337, 16864, 19220, 19840, 21080, 22103, 22816, 24242, 25024, 28520, 30752, 31280, 32674, 33728, 38440, 42160, 44206, 45632, 48484, 50048, 57040, 60605, 61504, 62560, 65348, 67456, 76880, 81685, 84320, 88412, 91264, 96968, 110515, 114080, 121210, 123008, 125120, 130696, 153760, 163370, 168640, 176824, 193936, 221030, 228160, 242420, 250240, 261392, 307520, 326740, 337280, 353648, 375751, 387872, 442060, 456320, 484840, 522784, 615040, 653480, 707296, 751502, 775744, 884120, 969680, 1045568, 1306960, 1414592, 1503004, 1551488, 1768240, 1878755, 1939360, 2091136, 2613920, 2829184, 3006008, 3536480, 3757510, 3878720, 5227840, 6012016, 7072960, 7515020, 7757440, 10455680, 12024032, 14145920, 15030040, 24048064, 30060080, 48096128, 60120160, 120240320, 240480640]

約数ペア:

[(1, 240480640), (2, 120240320), (4, 60120160), (5, 48096128), (8, 30060080), (10, 24048064), (16, 15030040), (17, 14145920), (20, 12024032), (23, 10455680), (31, 7757440), (32, 7515020), (34, 7072960), (40, 6012016), (46, 5227840), (62, 3878720), (64, 3757510), (68, 3536480), (80, 3006008), (85, 2829184), (92, 2613920), (115, 2091136), (124, 1939360), (128, 1878755), (136, 1768240), (155, 1551488), (160, 1503004), (170, 1414592), (184, 1306960), (230, 1045568), (248, 969680), (272, 884120), (310, 775744), (320, 751502), (340, 707296), (368, 653480), (391, 615040), (460, 522784), (496, 484840), (527, 456320), (544, 442060), (620, 387872), (640, 375751), (680, 353648), (713, 337280), (736, 326740), (782, 307520), (920, 261392), (961, 250240), (992, 242420), (1054, 228160), (1088, 221030), (1240, 193936), (1360, 176824), (1426, 168640), (1472, 163370), (1564, 153760), (1840, 130696), (1922, 125120), (1955, 123008), (1984, 121210), (2108, 114080), (2176, 110515), (2480, 96968), (2635, 91264), (2720, 88412), (2852, 84320), (2944, 81685), (3128, 76880), (3565, 67456), (3680, 65348), (3844, 62560), (3910, 61504), (3968, 60605), (4216, 57040), (4805, 50048), (4960, 48484), (5270, 45632), (5440, 44206), (5704, 42160), (6256, 38440), (7130, 33728), (7360, 32674), (7688, 31280), (7820, 30752), (8432, 28520), (9610, 25024), (9920, 24242), (10540, 22816), (10880, 22103), (11408, 21080), (12121, 19840), (12512, 19220), (14260, 16864), (14720, 16337), (15376, 15640)]