331475560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20563}}^1$

素因数の和:20618

約数の個数: 64

約数和(自身を含む): 829140480

約数和(自身を除く): 497664920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 20563, 41126, 82252, 102815, 164504, 205630, 267319, 411260, 534638, 637453, 822520, 1069276, 1274906, 1336595, 2138552, 2549812, 2673190, 3187265, 5099624, 5346380, 6374530, 8286889, 10692760, 12749060, 16573778, 25498120, 33147556, 41434445, 66295112, 82868890, 165737780, 331475560]

約数ペア:

[(1, 331475560), (2, 165737780), (4, 82868890), (5, 66295112), (8, 41434445), (10, 33147556), (13, 25498120), (20, 16573778), (26, 12749060), (31, 10692760), (40, 8286889), (52, 6374530), (62, 5346380), (65, 5099624), (104, 3187265), (124, 2673190), (130, 2549812), (155, 2138552), (248, 1336595), (260, 1274906), (310, 1069276), (403, 822520), (520, 637453), (620, 534638), (806, 411260), (1240, 267319), (1612, 205630), (2015, 164504), (3224, 102815), (4030, 82252), (8060, 41126), (16120, 20563)]