78840242840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{301331}}^1$

素因数の和:301584

約数の個数: 64

約数和(自身を含む): 183981265920

約数和(自身を除く): 105141023080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 211, 248, 310, 422, 620, 844, 1055, 1240, 1688, 2110, 4220, 6541, 8440, 13082, 26164, 32705, 52328, 65410, 130820, 261640, 301331, 602662, 1205324, 1506655, 2410648, 3013310, 6026620, 9341261, 12053240, 18682522, 37365044, 46706305, 63580841, 74730088, 93412610, 127161682, 186825220, 254323364, 317904205, 373650440, 508646728, 635808410, 1271616820, 1971006071, 2543233640, 3942012142, 7884024284, 9855030355, 15768048568, 19710060710, 39420121420, 78840242840]

約数ペア:

[(1, 78840242840), (2, 39420121420), (4, 19710060710), (5, 15768048568), (8, 9855030355), (10, 7884024284), (20, 3942012142), (31, 2543233640), (40, 1971006071), (62, 1271616820), (124, 635808410), (155, 508646728), (211, 373650440), (248, 317904205), (310, 254323364), (422, 186825220), (620, 127161682), (844, 93412610), (1055, 74730088), (1240, 63580841), (1688, 46706305), (2110, 37365044), (4220, 18682522), (6541, 12053240), (8440, 9341261), (13082, 6026620), (26164, 3013310), (32705, 2410648), (52328, 1506655), (65410, 1205324), (130820, 602662), (261640, 301331)]