131125840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{307}}^1$

素因数の和:620

約数の個数: 80

約数和(自身を含む): 323104320

約数和(自身を除く): 191978480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 281, 304, 307, 380, 562, 614, 760, 1124, 1228, 1405, 1520, 1535, 2248, 2456, 2810, 3070, 4496, 4912, 5339, 5620, 5833, 6140, 10678, 11240, 11666, 12280, 21356, 22480, 23332, 24560, 26695, 29165, 42712, 46664, 53390, 58330, 85424, 86267, 93328, 106780, 116660, 172534, 213560, 233320, 345068, 427120, 431335, 466640, 690136, 862670, 1380272, 1639073, 1725340, 3278146, 3450680, 6556292, 6901360, 8195365, 13112584, 16390730, 26225168, 32781460, 65562920, 131125840]

約数ペア:

[(1, 131125840), (2, 65562920), (4, 32781460), (5, 26225168), (8, 16390730), (10, 13112584), (16, 8195365), (19, 6901360), (20, 6556292), (38, 3450680), (40, 3278146), (76, 1725340), (80, 1639073), (95, 1380272), (152, 862670), (190, 690136), (281, 466640), (304, 431335), (307, 427120), (380, 345068), (562, 233320), (614, 213560), (760, 172534), (1124, 116660), (1228, 106780), (1405, 93328), (1520, 86267), (1535, 85424), (2248, 58330), (2456, 53390), (2810, 46664), (3070, 42712), (4496, 29165), (4912, 26695), (5339, 24560), (5620, 23332), (5833, 22480), (6140, 21356), (10678, 12280), (11240, 11666)]