77347640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:680

約数の個数: 64

約数和(自身を含む): 181764000

約数和(自身を除く): 104416360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 131, 145, 232, 262, 290, 509, 524, 580, 655, 1018, 1048, 1160, 1310, 2036, 2545, 2620, 3799, 4072, 5090, 5240, 7598, 10180, 14761, 15196, 18995, 20360, 29522, 30392, 37990, 59044, 66679, 73805, 75980, 118088, 133358, 147610, 151960, 266716, 295220, 333395, 533432, 590440, 666790, 1333580, 1933691, 2667160, 3867382, 7734764, 9668455, 15469528, 19336910, 38673820, 77347640]

約数ペア:

[(1, 77347640), (2, 38673820), (4, 19336910), (5, 15469528), (8, 9668455), (10, 7734764), (20, 3867382), (29, 2667160), (40, 1933691), (58, 1333580), (116, 666790), (131, 590440), (145, 533432), (232, 333395), (262, 295220), (290, 266716), (509, 151960), (524, 147610), (580, 133358), (655, 118088), (1018, 75980), (1048, 73805), (1160, 66679), (1310, 59044), (2036, 37990), (2545, 30392), (2620, 29522), (3799, 20360), (4072, 18995), (5090, 15196), (5240, 14761), (7598, 10180)]