18721830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:573

約数の個数: 64

約数和(自身を含む): 47609856

約数和(自身を除く): 28888026

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 41, 62, 82, 93, 123, 155, 186, 205, 246, 310, 410, 465, 491, 615, 930, 982, 1230, 1271, 1473, 2455, 2542, 2946, 3813, 4910, 6355, 7365, 7626, 12710, 14730, 15221, 19065, 20131, 30442, 38130, 40262, 45663, 60393, 76105, 91326, 100655, 120786, 152210, 201310, 228315, 301965, 456630, 603930, 624061, 1248122, 1872183, 3120305, 3744366, 6240610, 9360915, 18721830]

約数ペア:

[(1, 18721830), (2, 9360915), (3, 6240610), (5, 3744366), (6, 3120305), (10, 1872183), (15, 1248122), (30, 624061), (31, 603930), (41, 456630), (62, 301965), (82, 228315), (93, 201310), (123, 152210), (155, 120786), (186, 100655), (205, 91326), (246, 76105), (310, 60393), (410, 45663), (465, 40262), (491, 38130), (615, 30442), (930, 20131), (982, 19065), (1230, 15221), (1271, 14730), (1473, 12710), (2455, 7626), (2542, 7365), (2946, 6355), (3813, 4910)]