25695280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:854

約数の個数: 80

約数和(自身を含む): 66495744

約数和(自身を除く): 40800464

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 797, 806, 1040, 1240, 1594, 1612, 2015, 2480, 3188, 3224, 3985, 4030, 6376, 6448, 7970, 8060, 10361, 12752, 15940, 16120, 20722, 24707, 31880, 32240, 41444, 49414, 51805, 63760, 82888, 98828, 103610, 123535, 165776, 197656, 207220, 247070, 321191, 395312, 414440, 494140, 642382, 828880, 988280, 1284764, 1605955, 1976560, 2569528, 3211910, 5139056, 6423820, 12847640, 25695280]

約数ペア:

[(1, 25695280), (2, 12847640), (4, 6423820), (5, 5139056), (8, 3211910), (10, 2569528), (13, 1976560), (16, 1605955), (20, 1284764), (26, 988280), (31, 828880), (40, 642382), (52, 494140), (62, 414440), (65, 395312), (80, 321191), (104, 247070), (124, 207220), (130, 197656), (155, 165776), (208, 123535), (248, 103610), (260, 98828), (310, 82888), (403, 63760), (496, 51805), (520, 49414), (620, 41444), (797, 32240), (806, 31880), (1040, 24707), (1240, 20722), (1594, 16120), (1612, 15940), (2015, 12752), (2480, 10361), (3188, 8060), (3224, 7970), (3985, 6448), (4030, 6376)]