20295960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9949}}^1$

素因数の和:9980

約数の個数: 64

約数和(自身を含む): 64476000

約数和(自身を除く): 44180040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 9949, 19898, 29847, 39796, 49745, 59694, 79592, 99490, 119388, 149235, 169133, 198980, 238776, 298470, 338266, 397960, 507399, 596940, 676532, 845665, 1014798, 1193880, 1353064, 1691330, 2029596, 2536995, 3382660, 4059192, 5073990, 6765320, 10147980, 20295960]

約数ペア:

[(1, 20295960), (2, 10147980), (3, 6765320), (4, 5073990), (5, 4059192), (6, 3382660), (8, 2536995), (10, 2029596), (12, 1691330), (15, 1353064), (17, 1193880), (20, 1014798), (24, 845665), (30, 676532), (34, 596940), (40, 507399), (51, 397960), (60, 338266), (68, 298470), (85, 238776), (102, 198980), (120, 169133), (136, 149235), (170, 119388), (204, 99490), (255, 79592), (340, 59694), (408, 49745), (510, 39796), (680, 29847), (1020, 19898), (2040, 9949)]