210955690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 425865600

約数和(自身を除く): 214909910

約数列:

[1, 2, 5, 10, 11, 22, 55, 61, 110, 122, 149, 211, 298, 305, 422, 610, 671, 745, 1055, 1342, 1490, 1639, 2110, 2321, 3278, 3355, 4642, 6710, 8195, 9089, 11605, 12871, 16390, 18178, 23210, 25742, 31439, 45445, 62878, 64355, 90890, 99979, 128710, 141581, 157195, 199958, 283162, 314390, 345829, 499895, 691658, 707905, 999790, 1415810, 1729145, 1917779, 3458290, 3835558, 9588895, 19177790, 21095569, 42191138, 105477845, 210955690]

約数ペア:

[(1, 210955690), (2, 105477845), (5, 42191138), (10, 21095569), (11, 19177790), (22, 9588895), (55, 3835558), (61, 3458290), (110, 1917779), (122, 1729145), (149, 1415810), (211, 999790), (298, 707905), (305, 691658), (422, 499895), (610, 345829), (671, 314390), (745, 283162), (1055, 199958), (1342, 157195), (1490, 141581), (1639, 128710), (2110, 99979), (2321, 90890), (3278, 64355), (3355, 62878), (4642, 45445), (6710, 31439), (8195, 25742), (9089, 23210), (11605, 18178), (12871, 16390)]