28282540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:104

約数の個数: 144

約数和(自身を含む): 75075840

約数和(自身を除く): 46793300

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 29, 31, 44, 52, 55, 58, 62, 65, 110, 116, 121, 124, 130, 143, 145, 155, 220, 242, 260, 286, 290, 310, 319, 341, 377, 403, 484, 572, 580, 605, 620, 638, 682, 715, 754, 806, 899, 1210, 1276, 1364, 1430, 1508, 1573, 1595, 1612, 1705, 1798, 1885, 2015, 2420, 2860, 3146, 3190, 3410, 3509, 3596, 3751, 3770, 4030, 4147, 4433, 4495, 6292, 6380, 6820, 7018, 7502, 7540, 7865, 8060, 8294, 8866, 8990, 9889, 11687, 14036, 15004, 15730, 16588, 17545, 17732, 17980, 18755, 19778, 20735, 22165, 23374, 31460, 35090, 37510, 39556, 41470, 44330, 45617, 46748, 48763, 49445, 58435, 70180, 75020, 82940, 88660, 91234, 97526, 98890, 108779, 116870, 128557, 182468, 195052, 197780, 217558, 228085, 233740, 243815, 257114, 435116, 456170, 487630, 514228, 543895, 642785, 912340, 975260, 1087790, 1285570, 1414127, 2175580, 2571140, 2828254, 5656508, 7070635, 14141270, 28282540]

約数ペア:

[(1, 28282540), (2, 14141270), (4, 7070635), (5, 5656508), (10, 2828254), (11, 2571140), (13, 2175580), (20, 1414127), (22, 1285570), (26, 1087790), (29, 975260), (31, 912340), (44, 642785), (52, 543895), (55, 514228), (58, 487630), (62, 456170), (65, 435116), (110, 257114), (116, 243815), (121, 233740), (124, 228085), (130, 217558), (143, 197780), (145, 195052), (155, 182468), (220, 128557), (242, 116870), (260, 108779), (286, 98890), (290, 97526), (310, 91234), (319, 88660), (341, 82940), (377, 75020), (403, 70180), (484, 58435), (572, 49445), (580, 48763), (605, 46748), (620, 45617), (638, 44330), (682, 41470), (715, 39556), (754, 37510), (806, 35090), (899, 31460), (1210, 23374), (1276, 22165), (1364, 20735), (1430, 19778), (1508, 18755), (1573, 17980), (1595, 17732), (1612, 17545), (1705, 16588), (1798, 15730), (1885, 15004), (2015, 14036), (2420, 11687), (2860, 9889), (3146, 8990), (3190, 8866), (3410, 8294), (3509, 8060), (3596, 7865), (3751, 7540), (3770, 7502), (4030, 7018), (4147, 6820), (4433, 6380), (4495, 6292)]