28542320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:738

約数の個数: 80

約数和(自身を含む): 72638208

約数和(自身を除く): 44095888

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 677, 680, 1054, 1240, 1354, 1360, 2108, 2480, 2635, 2708, 3385, 4216, 5270, 5416, 6770, 8432, 10540, 10832, 11509, 13540, 20987, 21080, 23018, 27080, 41974, 42160, 46036, 54160, 57545, 83948, 92072, 104935, 115090, 167896, 184144, 209870, 230180, 335792, 356779, 419740, 460360, 713558, 839480, 920720, 1427116, 1678960, 1783895, 2854232, 3567790, 5708464, 7135580, 14271160, 28542320]

約数ペア:

[(1, 28542320), (2, 14271160), (4, 7135580), (5, 5708464), (8, 3567790), (10, 2854232), (16, 1783895), (17, 1678960), (20, 1427116), (31, 920720), (34, 839480), (40, 713558), (62, 460360), (68, 419740), (80, 356779), (85, 335792), (124, 230180), (136, 209870), (155, 184144), (170, 167896), (248, 115090), (272, 104935), (310, 92072), (340, 83948), (496, 57545), (527, 54160), (620, 46036), (677, 42160), (680, 41974), (1054, 27080), (1240, 23018), (1354, 21080), (1360, 20987), (2108, 13540), (2480, 11509), (2635, 10832), (2708, 10540), (3385, 8432), (4216, 6770), (5270, 5416)]