389611820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{34849}}^1$

素因数の和:34914

約数の個数: 48

約数和(自身を含む): 901639200

約数和(自身を除く): 512027380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 34849, 69698, 139396, 174245, 348490, 453037, 696980, 906074, 1498507, 1812148, 2265185, 2997014, 4530370, 5994028, 7492535, 9060740, 14985070, 19480591, 29970140, 38961182, 77922364, 97402955, 194805910, 389611820]

約数ペア:

[(1, 389611820), (2, 194805910), (4, 97402955), (5, 77922364), (10, 38961182), (13, 29970140), (20, 19480591), (26, 14985070), (43, 9060740), (52, 7492535), (65, 5994028), (86, 4530370), (130, 2997014), (172, 2265185), (215, 1812148), (260, 1498507), (430, 906074), (559, 696980), (860, 453037), (1118, 348490), (2236, 174245), (2795, 139396), (5590, 69698), (11180, 34849)]