28715280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:249

約数の個数: 160

約数和(自身を含む): 99100800

約数和(自身を除く): 70385520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 73, 80, 88, 110, 120, 132, 146, 149, 165, 176, 219, 220, 240, 264, 292, 298, 330, 365, 438, 440, 447, 528, 584, 596, 660, 730, 745, 803, 876, 880, 894, 1095, 1168, 1192, 1320, 1460, 1490, 1606, 1639, 1752, 1788, 2190, 2235, 2384, 2409, 2640, 2920, 2980, 3212, 3278, 3504, 3576, 4015, 4380, 4470, 4818, 4917, 5840, 5960, 6424, 6556, 7152, 8030, 8195, 8760, 8940, 9636, 9834, 10877, 11920, 12045, 12848, 13112, 16060, 16390, 17520, 17880, 19272, 19668, 21754, 24090, 24585, 26224, 32120, 32631, 32780, 35760, 38544, 39336, 43508, 48180, 49170, 54385, 64240, 65262, 65560, 78672, 87016, 96360, 98340, 108770, 119647, 130524, 131120, 163155, 174032, 192720, 196680, 217540, 239294, 261048, 326310, 358941, 393360, 435080, 478588, 522096, 598235, 652620, 717882, 870160, 957176, 1196470, 1305240, 1435764, 1794705, 1914352, 2392940, 2610480, 2871528, 3589410, 4785880, 5743056, 7178820, 9571760, 14357640, 28715280]

約数ペア:

[(1, 28715280), (2, 14357640), (3, 9571760), (4, 7178820), (5, 5743056), (6, 4785880), (8, 3589410), (10, 2871528), (11, 2610480), (12, 2392940), (15, 1914352), (16, 1794705), (20, 1435764), (22, 1305240), (24, 1196470), (30, 957176), (33, 870160), (40, 717882), (44, 652620), (48, 598235), (55, 522096), (60, 478588), (66, 435080), (73, 393360), (80, 358941), (88, 326310), (110, 261048), (120, 239294), (132, 217540), (146, 196680), (149, 192720), (165, 174032), (176, 163155), (219, 131120), (220, 130524), (240, 119647), (264, 108770), (292, 98340), (298, 96360), (330, 87016), (365, 78672), (438, 65560), (440, 65262), (447, 64240), (528, 54385), (584, 49170), (596, 48180), (660, 43508), (730, 39336), (745, 38544), (803, 35760), (876, 32780), (880, 32631), (894, 32120), (1095, 26224), (1168, 24585), (1192, 24090), (1320, 21754), (1460, 19668), (1490, 19272), (1606, 17880), (1639, 17520), (1752, 16390), (1788, 16060), (2190, 13112), (2235, 12848), (2384, 12045), (2409, 11920), (2640, 10877), (2920, 9834), (2980, 9636), (3212, 8940), (3278, 8760), (3504, 8195), (3576, 8030), (4015, 7152), (4380, 6556), (4470, 6424), (4818, 5960), (4917, 5840)]