638556828

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83537}}^1$

素因数の和:83571

約数の個数: 72

約数和(自身を含む): 1866573072

約数和(自身を除く): 1228016244

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 78, 84, 91, 98, 147, 156, 182, 196, 273, 294, 364, 546, 588, 637, 1092, 1274, 1911, 2548, 3822, 7644, 83537, 167074, 250611, 334148, 501222, 584759, 1002444, 1085981, 1169518, 1754277, 2171962, 2339036, 3257943, 3508554, 4093313, 4343924, 6515886, 7017108, 7601867, 8186626, 12279939, 13031772, 15203734, 16373252, 22805601, 24559878, 30407468, 45611202, 49119756, 53213069, 91222404, 106426138, 159639207, 212852276, 319278414, 638556828]

約数ペア:

[(1, 638556828), (2, 319278414), (3, 212852276), (4, 159639207), (6, 106426138), (7, 91222404), (12, 53213069), (13, 49119756), (14, 45611202), (21, 30407468), (26, 24559878), (28, 22805601), (39, 16373252), (42, 15203734), (49, 13031772), (52, 12279939), (78, 8186626), (84, 7601867), (91, 7017108), (98, 6515886), (147, 4343924), (156, 4093313), (182, 3508554), (196, 3257943), (273, 2339036), (294, 2171962), (364, 1754277), (546, 1169518), (588, 1085981), (637, 1002444), (1092, 584759), (1274, 501222), (1911, 334148), (2548, 250611), (3822, 167074), (7644, 83537)]