28900680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:519

約数の個数: 128

約数和(自身を含む): 94970880

約数和(自身を除く): 66070200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 31, 34, 40, 51, 60, 62, 68, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 248, 255, 310, 340, 372, 408, 457, 465, 510, 527, 620, 680, 744, 914, 930, 1020, 1054, 1240, 1371, 1581, 1828, 1860, 2040, 2108, 2285, 2635, 2742, 3162, 3656, 3720, 4216, 4570, 5270, 5484, 6324, 6855, 7769, 7905, 9140, 10540, 10968, 12648, 13710, 14167, 15538, 15810, 18280, 21080, 23307, 27420, 28334, 31076, 31620, 38845, 42501, 46614, 54840, 56668, 62152, 63240, 70835, 77690, 85002, 93228, 113336, 116535, 141670, 155380, 170004, 186456, 212505, 233070, 240839, 283340, 310760, 340008, 425010, 466140, 481678, 566680, 722517, 850020, 932280, 963356, 1204195, 1445034, 1700040, 1926712, 2408390, 2890068, 3612585, 4816780, 5780136, 7225170, 9633560, 14450340, 28900680]

約数ペア:

[(1, 28900680), (2, 14450340), (3, 9633560), (4, 7225170), (5, 5780136), (6, 4816780), (8, 3612585), (10, 2890068), (12, 2408390), (15, 1926712), (17, 1700040), (20, 1445034), (24, 1204195), (30, 963356), (31, 932280), (34, 850020), (40, 722517), (51, 566680), (60, 481678), (62, 466140), (68, 425010), (85, 340008), (93, 310760), (102, 283340), (120, 240839), (124, 233070), (136, 212505), (155, 186456), (170, 170004), (186, 155380), (204, 141670), (248, 116535), (255, 113336), (310, 93228), (340, 85002), (372, 77690), (408, 70835), (457, 63240), (465, 62152), (510, 56668), (527, 54840), (620, 46614), (680, 42501), (744, 38845), (914, 31620), (930, 31076), (1020, 28334), (1054, 27420), (1240, 23307), (1371, 21080), (1581, 18280), (1828, 15810), (1860, 15538), (2040, 14167), (2108, 13710), (2285, 12648), (2635, 10968), (2742, 10540), (3162, 9140), (3656, 7905), (3720, 7769), (4216, 6855), (4570, 6324), (5270, 5484)]