51870130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 105993216

約数和(自身を除く): 54123086

約数列:

[1, 2, 5, 10, 13, 26, 31, 61, 62, 65, 122, 130, 155, 211, 305, 310, 403, 422, 610, 793, 806, 1055, 1586, 1891, 2015, 2110, 2743, 3782, 3965, 4030, 5486, 6541, 7930, 9455, 12871, 13082, 13715, 18910, 24583, 25742, 27430, 32705, 49166, 64355, 65410, 85033, 122915, 128710, 167323, 170066, 245830, 334646, 399001, 425165, 798002, 836615, 850330, 1673230, 1995005, 3990010, 5187013, 10374026, 25935065, 51870130]

約数ペア:

[(1, 51870130), (2, 25935065), (5, 10374026), (10, 5187013), (13, 3990010), (26, 1995005), (31, 1673230), (61, 850330), (62, 836615), (65, 798002), (122, 425165), (130, 399001), (155, 334646), (211, 245830), (305, 170066), (310, 167323), (403, 128710), (422, 122915), (610, 85033), (793, 65410), (806, 64355), (1055, 49166), (1586, 32705), (1891, 27430), (2015, 25742), (2110, 24583), (2743, 18910), (3782, 13715), (3965, 13082), (4030, 12871), (5486, 9455), (6541, 7930)]