78049720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{863}}^1$

素因数の和:917

約数の個数: 128

約数和(自身を含む): 223948800

約数和(自身を除く): 145899080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 380, 476, 532, 595, 646, 665, 680, 760, 863, 952, 1064, 1190, 1292, 1330, 1615, 1726, 2261, 2380, 2584, 2660, 3230, 3452, 4315, 4522, 4760, 5320, 6041, 6460, 6904, 8630, 9044, 11305, 12082, 12920, 14671, 16397, 17260, 18088, 22610, 24164, 29342, 30205, 32794, 34520, 45220, 48328, 58684, 60410, 65588, 73355, 81985, 90440, 102697, 114779, 117368, 120820, 131176, 146710, 163970, 205394, 229558, 241640, 278749, 293420, 327940, 410788, 459116, 513485, 557498, 573895, 586840, 655880, 821576, 918232, 1026970, 1114996, 1147790, 1393745, 1951243, 2053940, 2229992, 2295580, 2787490, 3902486, 4107880, 4591160, 5574980, 7804972, 9756215, 11149960, 15609944, 19512430, 39024860, 78049720]

約数ペア:

[(1, 78049720), (2, 39024860), (4, 19512430), (5, 15609944), (7, 11149960), (8, 9756215), (10, 7804972), (14, 5574980), (17, 4591160), (19, 4107880), (20, 3902486), (28, 2787490), (34, 2295580), (35, 2229992), (38, 2053940), (40, 1951243), (56, 1393745), (68, 1147790), (70, 1114996), (76, 1026970), (85, 918232), (95, 821576), (119, 655880), (133, 586840), (136, 573895), (140, 557498), (152, 513485), (170, 459116), (190, 410788), (238, 327940), (266, 293420), (280, 278749), (323, 241640), (340, 229558), (380, 205394), (476, 163970), (532, 146710), (595, 131176), (646, 120820), (665, 117368), (680, 114779), (760, 102697), (863, 90440), (952, 81985), (1064, 73355), (1190, 65588), (1292, 60410), (1330, 58684), (1615, 48328), (1726, 45220), (2261, 34520), (2380, 32794), (2584, 30205), (2660, 29342), (3230, 24164), (3452, 22610), (4315, 18088), (4522, 17260), (4760, 16397), (5320, 14671), (6041, 12920), (6460, 12082), (6904, 11305), (8630, 9044)]