40640520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1259}}^1$

素因数の和:1542

約数の個数: 64

約数和(自身を含む): 122472000

約数和(自身を除く): 81831480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 269, 538, 807, 1076, 1259, 1345, 1614, 2152, 2518, 2690, 3228, 3777, 4035, 5036, 5380, 6295, 6456, 7554, 8070, 10072, 10760, 12590, 15108, 16140, 18885, 25180, 30216, 32280, 37770, 50360, 75540, 151080, 338671, 677342, 1016013, 1354684, 1693355, 2032026, 2709368, 3386710, 4064052, 5080065, 6773420, 8128104, 10160130, 13546840, 20320260, 40640520]

約数ペア:

[(1, 40640520), (2, 20320260), (3, 13546840), (4, 10160130), (5, 8128104), (6, 6773420), (8, 5080065), (10, 4064052), (12, 3386710), (15, 2709368), (20, 2032026), (24, 1693355), (30, 1354684), (40, 1016013), (60, 677342), (120, 338671), (269, 151080), (538, 75540), (807, 50360), (1076, 37770), (1259, 32280), (1345, 30216), (1614, 25180), (2152, 18885), (2518, 16140), (2690, 15108), (3228, 12590), (3777, 10760), (4035, 10072), (5036, 8070), (5380, 7554), (6295, 6456)]