25902980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1019}}^1$

素因数の和:1100

約数の個数: 48

約数和(自身を含む): 57576960

約数和(自身を除く): 31673980

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1019, 1271, 2038, 2542, 4076, 5084, 5095, 6355, 10190, 12710, 20380, 25420, 31589, 41779, 63178, 83558, 126356, 157945, 167116, 208895, 315890, 417790, 631780, 835580, 1295149, 2590298, 5180596, 6475745, 12951490, 25902980]

約数ペア:

[(1, 25902980), (2, 12951490), (4, 6475745), (5, 5180596), (10, 2590298), (20, 1295149), (31, 835580), (41, 631780), (62, 417790), (82, 315890), (124, 208895), (155, 167116), (164, 157945), (205, 126356), (310, 83558), (410, 63178), (620, 41779), (820, 31589), (1019, 25420), (1271, 20380), (2038, 12710), (2542, 10190), (4076, 6355), (5084, 5095)]