61642880

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:302

約数の個数: 128

約数和(自身を含む): 164505600

約数和(自身を除く): 102862720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 239, 248, 260, 310, 320, 403, 416, 478, 496, 520, 620, 640, 806, 832, 956, 992, 1040, 1195, 1240, 1612, 1664, 1912, 1984, 2015, 2080, 2390, 2480, 3107, 3224, 3824, 3968, 4030, 4160, 4780, 4960, 6214, 6448, 7409, 7648, 8060, 8320, 9560, 9920, 12428, 12896, 14818, 15296, 15535, 16120, 19120, 19840, 24856, 25792, 29636, 30592, 31070, 32240, 37045, 38240, 49712, 51584, 59272, 62140, 64480, 74090, 76480, 96317, 99424, 118544, 124280, 128960, 148180, 152960, 192634, 198848, 237088, 248560, 257920, 296360, 385268, 397696, 474176, 481585, 497120, 592720, 770536, 948352, 963170, 994240, 1185440, 1541072, 1926340, 1988480, 2370880, 3082144, 3852680, 4741760, 6164288, 7705360, 12328576, 15410720, 30821440, 61642880]

約数ペア:

[(1, 61642880), (2, 30821440), (4, 15410720), (5, 12328576), (8, 7705360), (10, 6164288), (13, 4741760), (16, 3852680), (20, 3082144), (26, 2370880), (31, 1988480), (32, 1926340), (40, 1541072), (52, 1185440), (62, 994240), (64, 963170), (65, 948352), (80, 770536), (104, 592720), (124, 497120), (128, 481585), (130, 474176), (155, 397696), (160, 385268), (208, 296360), (239, 257920), (248, 248560), (260, 237088), (310, 198848), (320, 192634), (403, 152960), (416, 148180), (478, 128960), (496, 124280), (520, 118544), (620, 99424), (640, 96317), (806, 76480), (832, 74090), (956, 64480), (992, 62140), (1040, 59272), (1195, 51584), (1240, 49712), (1612, 38240), (1664, 37045), (1912, 32240), (1984, 31070), (2015, 30592), (2080, 29636), (2390, 25792), (2480, 24856), (3107, 19840), (3224, 19120), (3824, 16120), (3968, 15535), (4030, 15296), (4160, 14818), (4780, 12896), (4960, 12428), (6214, 9920), (6448, 9560), (7409, 8320), (7648, 8060)]