18151120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:620

約数の個数: 80

約数和(自身を含む): 46996992

約数和(自身を除く): 28845872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 563, 620, 806, 1040, 1126, 1240, 1612, 2015, 2252, 2480, 2815, 3224, 4030, 4504, 5630, 6448, 7319, 8060, 9008, 11260, 14638, 16120, 17453, 22520, 29276, 32240, 34906, 36595, 45040, 58552, 69812, 73190, 87265, 117104, 139624, 146380, 174530, 226889, 279248, 292760, 349060, 453778, 585520, 698120, 907556, 1134445, 1396240, 1815112, 2268890, 3630224, 4537780, 9075560, 18151120]

約数ペア:

[(1, 18151120), (2, 9075560), (4, 4537780), (5, 3630224), (8, 2268890), (10, 1815112), (13, 1396240), (16, 1134445), (20, 907556), (26, 698120), (31, 585520), (40, 453778), (52, 349060), (62, 292760), (65, 279248), (80, 226889), (104, 174530), (124, 146380), (130, 139624), (155, 117104), (208, 87265), (248, 73190), (260, 69812), (310, 58552), (403, 45040), (496, 36595), (520, 34906), (563, 32240), (620, 29276), (806, 22520), (1040, 17453), (1126, 16120), (1240, 14638), (1612, 11260), (2015, 9008), (2252, 8060), (2480, 7319), (2815, 6448), (3224, 5630), (4030, 4504)]