78586240

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:300

約数の個数: 128

約数和(自身を含む): 206219520

約数和(自身を除く): 127633280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 128, 136, 155, 160, 170, 233, 248, 272, 310, 320, 340, 466, 496, 527, 544, 620, 640, 680, 932, 992, 1054, 1088, 1165, 1240, 1360, 1864, 1984, 2108, 2176, 2330, 2480, 2635, 2720, 3728, 3961, 3968, 4216, 4660, 4960, 5270, 5440, 7223, 7456, 7922, 8432, 9320, 9920, 10540, 10880, 14446, 14912, 15844, 16864, 18640, 19805, 19840, 21080, 28892, 29824, 31688, 33728, 36115, 37280, 39610, 42160, 57784, 63376, 67456, 72230, 74560, 79220, 84320, 115568, 122791, 126752, 144460, 149120, 158440, 168640, 231136, 245582, 253504, 288920, 316880, 337280, 462272, 491164, 507008, 577840, 613955, 633760, 924544, 982328, 1155680, 1227910, 1267520, 1964656, 2311360, 2455820, 2535040, 3929312, 4622720, 4911640, 7858624, 9823280, 15717248, 19646560, 39293120, 78586240]

約数ペア:

[(1, 78586240), (2, 39293120), (4, 19646560), (5, 15717248), (8, 9823280), (10, 7858624), (16, 4911640), (17, 4622720), (20, 3929312), (31, 2535040), (32, 2455820), (34, 2311360), (40, 1964656), (62, 1267520), (64, 1227910), (68, 1155680), (80, 982328), (85, 924544), (124, 633760), (128, 613955), (136, 577840), (155, 507008), (160, 491164), (170, 462272), (233, 337280), (248, 316880), (272, 288920), (310, 253504), (320, 245582), (340, 231136), (466, 168640), (496, 158440), (527, 149120), (544, 144460), (620, 126752), (640, 122791), (680, 115568), (932, 84320), (992, 79220), (1054, 74560), (1088, 72230), (1165, 67456), (1240, 63376), (1360, 57784), (1864, 42160), (1984, 39610), (2108, 37280), (2176, 36115), (2330, 33728), (2480, 31688), (2635, 29824), (2720, 28892), (3728, 21080), (3961, 19840), (3968, 19805), (4216, 18640), (4660, 16864), (4960, 15844), (5270, 14912), (5440, 14446), (7223, 10880), (7456, 10540), (7922, 9920), (8432, 9320)]