1800815120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:493

約数の個数: 160

約数和(自身を含む): 4665638880

約数和(自身を除く): 2864823760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 157, 164, 205, 208, 260, 269, 314, 328, 410, 520, 533, 538, 628, 656, 785, 820, 1040, 1066, 1076, 1256, 1345, 1570, 1640, 2041, 2132, 2152, 2512, 2665, 2690, 3140, 3280, 3497, 4082, 4264, 4304, 5330, 5380, 6280, 6437, 6994, 8164, 8528, 10205, 10660, 10760, 11029, 12560, 12874, 13988, 16328, 17485, 20410, 21320, 21520, 22058, 25748, 27976, 32185, 32656, 34970, 40820, 42233, 42640, 44116, 51496, 55145, 55952, 64370, 69940, 81640, 83681, 84466, 88232, 102992, 110290, 128740, 139880, 143377, 163280, 167362, 168932, 176464, 211165, 220580, 257480, 279760, 286754, 334724, 337864, 418405, 422330, 441160, 514960, 549029, 573508, 669448, 675728, 716885, 836810, 844660, 882320, 1098058, 1147016, 1338896, 1433770, 1673620, 1689320, 1731553, 2196116, 2294032, 2745145, 2867540, 3347240, 3378640, 3463106, 4392232, 5490290, 5735080, 6694480, 6926212, 8657765, 8784464, 10980580, 11470160, 13852424, 17315530, 21961160, 22510189, 27704848, 34631060, 43922320, 45020378, 69262120, 90040756, 112550945, 138524240, 180081512, 225101890, 360163024, 450203780, 900407560, 1800815120]

約数ペア:

[(1, 1800815120), (2, 900407560), (4, 450203780), (5, 360163024), (8, 225101890), (10, 180081512), (13, 138524240), (16, 112550945), (20, 90040756), (26, 69262120), (40, 45020378), (41, 43922320), (52, 34631060), (65, 27704848), (80, 22510189), (82, 21961160), (104, 17315530), (130, 13852424), (157, 11470160), (164, 10980580), (205, 8784464), (208, 8657765), (260, 6926212), (269, 6694480), (314, 5735080), (328, 5490290), (410, 4392232), (520, 3463106), (533, 3378640), (538, 3347240), (628, 2867540), (656, 2745145), (785, 2294032), (820, 2196116), (1040, 1731553), (1066, 1689320), (1076, 1673620), (1256, 1433770), (1345, 1338896), (1570, 1147016), (1640, 1098058), (2041, 882320), (2132, 844660), (2152, 836810), (2512, 716885), (2665, 675728), (2690, 669448), (3140, 573508), (3280, 549029), (3497, 514960), (4082, 441160), (4264, 422330), (4304, 418405), (5330, 337864), (5380, 334724), (6280, 286754), (6437, 279760), (6994, 257480), (8164, 220580), (8528, 211165), (10205, 176464), (10660, 168932), (10760, 167362), (11029, 163280), (12560, 143377), (12874, 139880), (13988, 128740), (16328, 110290), (17485, 102992), (20410, 88232), (21320, 84466), (21520, 83681), (22058, 81640), (25748, 69940), (27976, 64370), (32185, 55952), (32656, 55145), (34970, 51496), (40820, 44116), (42233, 42640)]