440293880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{49807}}^1$

素因数の和:49848

約数の個数: 64

約数和(自身を含む): 1129645440

約数和(自身を除く): 689351560

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8840, 49807, 99614, 199228, 249035, 398456, 498070, 647491, 846719, 996140, 1294982, 1693438, 1992280, 2589964, 3237455, 3386876, 4233595, 5179928, 6474910, 6773752, 8467190, 11007347, 12949820, 16934380, 22014694, 25899640, 33868760, 44029388, 55036735, 88058776, 110073470, 220146940, 440293880]

約数ペア:

[(1, 440293880), (2, 220146940), (4, 110073470), (5, 88058776), (8, 55036735), (10, 44029388), (13, 33868760), (17, 25899640), (20, 22014694), (26, 16934380), (34, 12949820), (40, 11007347), (52, 8467190), (65, 6773752), (68, 6474910), (85, 5179928), (104, 4233595), (130, 3386876), (136, 3237455), (170, 2589964), (221, 1992280), (260, 1693438), (340, 1294982), (442, 996140), (520, 846719), (680, 647491), (884, 498070), (1105, 398456), (1768, 249035), (2210, 199228), (4420, 99614), (8840, 49807)]