615040

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^2$

素因数の和:81

約数の個数: 48

約数和(自身を含む): 1519290

約数和(自身を除く): 904250

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 961, 992, 1240, 1922, 1984, 2480, 3844, 3968, 4805, 4960, 7688, 9610, 9920, 15376, 19220, 19840, 30752, 38440, 61504, 76880, 123008, 153760, 307520, 615040]

約数ペア:

[(1, 615040), (2, 307520), (4, 153760), (5, 123008), (8, 76880), (10, 61504), (16, 38440), (20, 30752), (31, 19840), (32, 19220), (40, 15376), (62, 9920), (64, 9610), (80, 7688), (124, 4960), (128, 4805), (155, 3968), (160, 3844), (248, 2480), (310, 1984), (320, 1922), (496, 1240), (620, 992), (640, 961)]