16640520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10667}}^1$

素因数の和:10694

約数の個数: 64

約数和(自身を含む): 53766720

約数和(自身を除く): 37126200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 10667, 21334, 32001, 42668, 53335, 64002, 85336, 106670, 128004, 138671, 160005, 213340, 256008, 277342, 320010, 416013, 426680, 554684, 640020, 693355, 832026, 1109368, 1280040, 1386710, 1664052, 2080065, 2773420, 3328104, 4160130, 5546840, 8320260, 16640520]

約数ペア:

[(1, 16640520), (2, 8320260), (3, 5546840), (4, 4160130), (5, 3328104), (6, 2773420), (8, 2080065), (10, 1664052), (12, 1386710), (13, 1280040), (15, 1109368), (20, 832026), (24, 693355), (26, 640020), (30, 554684), (39, 426680), (40, 416013), (52, 320010), (60, 277342), (65, 256008), (78, 213340), (104, 160005), (120, 138671), (130, 128004), (156, 106670), (195, 85336), (260, 64002), (312, 53335), (390, 42668), (520, 32001), (780, 21334), (1560, 10667)]