256492013200

素因数分解:

$2^4\times 5^2\times {\mathrm{223}}^1\times {\mathrm{397}}^1\times {\mathrm{7243}}^1$

素因数の和:7881

約数の個数: 120

約数和(自身を含む): 620630221568

約数和(自身を除く): 364138208368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 223, 397, 400, 446, 794, 892, 1115, 1588, 1784, 1985, 2230, 3176, 3568, 3970, 4460, 5575, 6352, 7243, 7940, 8920, 9925, 11150, 14486, 15880, 17840, 19850, 22300, 28972, 31760, 36215, 39700, 44600, 57944, 72430, 79400, 88531, 89200, 115888, 144860, 158800, 177062, 181075, 289720, 354124, 362150, 442655, 579440, 708248, 724300, 885310, 1416496, 1448600, 1615189, 1770620, 2213275, 2875471, 2897200, 3230378, 3541240, 4426550, 5750942, 6460756, 7082480, 8075945, 8853100, 11501884, 12921512, 14377355, 16151890, 17706200, 23003768, 25843024, 28754710, 32303780, 35412400, 40379725, 46007536, 57509420, 64607560, 71886775, 80759450, 115018840, 129215120, 143773550, 161518900, 230037680, 287547100, 323037800, 575094200, 641230033, 646075600, 1150188400, 1282460066, 2564920132, 3206150165, 5129840264, 6412300330, 10259680528, 12824600660, 16030750825, 25649201320, 32061501650, 51298402640, 64123003300, 128246006600, 256492013200]

約数ペア:

[(1, 256492013200), (2, 128246006600), (4, 64123003300), (5, 51298402640), (8, 32061501650), (10, 25649201320), (16, 16030750825), (20, 12824600660), (25, 10259680528), (40, 6412300330), (50, 5129840264), (80, 3206150165), (100, 2564920132), (200, 1282460066), (223, 1150188400), (397, 646075600), (400, 641230033), (446, 575094200), (794, 323037800), (892, 287547100), (1115, 230037680), (1588, 161518900), (1784, 143773550), (1985, 129215120), (2230, 115018840), (3176, 80759450), (3568, 71886775), (3970, 64607560), (4460, 57509420), (5575, 46007536), (6352, 40379725), (7243, 35412400), (7940, 32303780), (8920, 28754710), (9925, 25843024), (11150, 23003768), (14486, 17706200), (15880, 16151890), (17840, 14377355), (19850, 12921512), (22300, 11501884), (28972, 8853100), (31760, 8075945), (36215, 7082480), (39700, 6460756), (44600, 5750942), (57944, 4426550), (72430, 3541240), (79400, 3230378), (88531, 2897200), (89200, 2875471), (115888, 2213275), (144860, 1770620), (158800, 1615189), (177062, 1448600), (181075, 1416496), (289720, 885310), (354124, 724300), (362150, 708248), (442655, 579440)]