128224252820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1\times {\mathrm{313829}}^1$

素因数の和:314528

約数の個数: 48

約数和(自身を含む): 278379763200

約数和(自身を除く): 150155510380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 659, 1318, 2636, 3295, 6590, 13180, 20429, 40858, 81716, 102145, 204290, 313829, 408580, 627658, 1255316, 1569145, 3138290, 6276580, 9728699, 19457398, 38914796, 48643495, 97286990, 194573980, 206813311, 413626622, 827253244, 1034066555, 2068133110, 4136266220, 6411212641, 12822425282, 25644850564, 32056063205, 64112126410, 128224252820]

約数ペア:

[(1, 128224252820), (2, 64112126410), (4, 32056063205), (5, 25644850564), (10, 12822425282), (20, 6411212641), (31, 4136266220), (62, 2068133110), (124, 1034066555), (155, 827253244), (310, 413626622), (620, 206813311), (659, 194573980), (1318, 97286990), (2636, 48643495), (3295, 38914796), (6590, 19457398), (13180, 9728699), (20429, 6276580), (40858, 3138290), (81716, 1569145), (102145, 1255316), (204290, 627658), (313829, 408580)]