72183880

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:574

約数の個数: 64

約数和(自身を含む): 167961600

約数和(自身を除く): 95777720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 79, 106, 158, 212, 265, 316, 395, 424, 431, 530, 632, 790, 862, 1060, 1580, 1724, 2120, 2155, 3160, 3448, 4187, 4310, 8374, 8620, 16748, 17240, 20935, 22843, 33496, 34049, 41870, 45686, 68098, 83740, 91372, 114215, 136196, 167480, 170245, 182744, 228430, 272392, 340490, 456860, 680980, 913720, 1361960, 1804597, 3609194, 7218388, 9022985, 14436776, 18045970, 36091940, 72183880]

約数ペア:

[(1, 72183880), (2, 36091940), (4, 18045970), (5, 14436776), (8, 9022985), (10, 7218388), (20, 3609194), (40, 1804597), (53, 1361960), (79, 913720), (106, 680980), (158, 456860), (212, 340490), (265, 272392), (316, 228430), (395, 182744), (424, 170245), (431, 167480), (530, 136196), (632, 114215), (790, 91372), (862, 83740), (1060, 68098), (1580, 45686), (1724, 41870), (2120, 34049), (2155, 33496), (3160, 22843), (3448, 20935), (4187, 17240), (4310, 16748), (8374, 8620)]