65481520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{797}}^1$

素因数の和:902

約数の個数: 80

約数和(自身を含む): 166239360

約数和(自身を除く): 100757840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 316, 395, 520, 632, 790, 797, 1027, 1040, 1264, 1580, 1594, 2054, 3160, 3188, 3985, 4108, 5135, 6320, 6376, 7970, 8216, 10270, 10361, 12752, 15940, 16432, 20540, 20722, 31880, 41080, 41444, 51805, 62963, 63760, 82160, 82888, 103610, 125926, 165776, 207220, 251852, 314815, 414440, 503704, 629630, 818519, 828880, 1007408, 1259260, 1637038, 2518520, 3274076, 4092595, 5037040, 6548152, 8185190, 13096304, 16370380, 32740760, 65481520]

約数ペア:

[(1, 65481520), (2, 32740760), (4, 16370380), (5, 13096304), (8, 8185190), (10, 6548152), (13, 5037040), (16, 4092595), (20, 3274076), (26, 2518520), (40, 1637038), (52, 1259260), (65, 1007408), (79, 828880), (80, 818519), (104, 629630), (130, 503704), (158, 414440), (208, 314815), (260, 251852), (316, 207220), (395, 165776), (520, 125926), (632, 103610), (790, 82888), (797, 82160), (1027, 63760), (1040, 62963), (1264, 51805), (1580, 41444), (1594, 41080), (2054, 31880), (3160, 20722), (3188, 20540), (3985, 16432), (4108, 15940), (5135, 12752), (6320, 10361), (6376, 10270), (7970, 8216)]