21566640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3907}}^1$

素因数の和:3946

約数の個数: 80

約数和(自身を含む): 69781248

約数和(自身を除く): 48214608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3907, 5520, 7814, 11721, 15628, 19535, 23442, 31256, 39070, 46884, 58605, 62512, 78140, 89861, 93768, 117210, 156280, 179722, 187536, 234420, 269583, 312560, 359444, 449305, 468840, 539166, 718888, 898610, 937680, 1078332, 1347915, 1437776, 1797220, 2156664, 2695830, 3594440, 4313328, 5391660, 7188880, 10783320, 21566640]

約数ペア:

[(1, 21566640), (2, 10783320), (3, 7188880), (4, 5391660), (5, 4313328), (6, 3594440), (8, 2695830), (10, 2156664), (12, 1797220), (15, 1437776), (16, 1347915), (20, 1078332), (23, 937680), (24, 898610), (30, 718888), (40, 539166), (46, 468840), (48, 449305), (60, 359444), (69, 312560), (80, 269583), (92, 234420), (115, 187536), (120, 179722), (138, 156280), (184, 117210), (230, 93768), (240, 89861), (276, 78140), (345, 62512), (368, 58605), (460, 46884), (552, 39070), (690, 31256), (920, 23442), (1104, 19535), (1380, 15628), (1840, 11721), (2760, 7814), (3907, 5520)]