388731642

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{991}}^1$

素因数の和:1163

約数の個数: 64

約数和(自身を含む): 863944704

約数和(自身を除く): 475213062

約数列:

[1, 2, 3, 6, 13, 26, 39, 47, 78, 94, 107, 141, 214, 282, 321, 611, 642, 991, 1222, 1391, 1833, 1982, 2782, 2973, 3666, 4173, 5029, 5946, 8346, 10058, 12883, 15087, 25766, 30174, 38649, 46577, 65377, 77298, 93154, 106037, 130754, 139731, 196131, 212074, 279462, 318111, 392262, 605501, 636222, 1211002, 1378481, 1816503, 2756962, 3633006, 4135443, 4983739, 8270886, 9967478, 14951217, 29902434, 64788607, 129577214, 194365821, 388731642]

約数ペア:

[(1, 388731642), (2, 194365821), (3, 129577214), (6, 64788607), (13, 29902434), (26, 14951217), (39, 9967478), (47, 8270886), (78, 4983739), (94, 4135443), (107, 3633006), (141, 2756962), (214, 1816503), (282, 1378481), (321, 1211002), (611, 636222), (642, 605501), (991, 392262), (1222, 318111), (1391, 279462), (1833, 212074), (1982, 196131), (2782, 139731), (2973, 130754), (3666, 106037), (4173, 93154), (5029, 77298), (5946, 65377), (8346, 46577), (10058, 38649), (12883, 30174), (15087, 25766)]