55015720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 127552320

約数和(自身を除く): 72536600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 83, 146, 166, 227, 292, 332, 365, 415, 454, 584, 664, 730, 830, 908, 1135, 1460, 1660, 1816, 2270, 2920, 3320, 4540, 6059, 9080, 12118, 16571, 18841, 24236, 30295, 33142, 37682, 48472, 60590, 66284, 75364, 82855, 94205, 121180, 132568, 150728, 165710, 188410, 242360, 331420, 376820, 662840, 753640, 1375393, 2750786, 5501572, 6876965, 11003144, 13753930, 27507860, 55015720]

約数ペア:

[(1, 55015720), (2, 27507860), (4, 13753930), (5, 11003144), (8, 6876965), (10, 5501572), (20, 2750786), (40, 1375393), (73, 753640), (83, 662840), (146, 376820), (166, 331420), (227, 242360), (292, 188410), (332, 165710), (365, 150728), (415, 132568), (454, 121180), (584, 94205), (664, 82855), (730, 75364), (830, 66284), (908, 60590), (1135, 48472), (1460, 37682), (1660, 33142), (1816, 30295), (2270, 24236), (2920, 18841), (3320, 16571), (4540, 12118), (6059, 9080)]