16993920380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{139}}^1\times {\mathrm{6361}}^1$

素因数の和:6571

約数の個数: 72

約数和(自身を含む): 37146700080

約数和(自身を除く): 20152779700

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 556, 620, 695, 961, 1390, 1922, 2780, 3844, 4309, 4805, 6361, 8618, 9610, 12722, 17236, 19220, 21545, 25444, 31805, 43090, 63610, 86180, 127220, 133579, 197191, 267158, 394382, 534316, 667895, 788764, 884179, 985955, 1335790, 1768358, 1971910, 2671580, 3536716, 3943820, 4420895, 6112921, 8841790, 12225842, 17683580, 24451684, 27409549, 30564605, 54819098, 61129210, 109638196, 122258420, 137047745, 274095490, 548190980, 849696019, 1699392038, 3398784076, 4248480095, 8496960190, 16993920380]

約数ペア:

[(1, 16993920380), (2, 8496960190), (4, 4248480095), (5, 3398784076), (10, 1699392038), (20, 849696019), (31, 548190980), (62, 274095490), (124, 137047745), (139, 122258420), (155, 109638196), (278, 61129210), (310, 54819098), (556, 30564605), (620, 27409549), (695, 24451684), (961, 17683580), (1390, 12225842), (1922, 8841790), (2780, 6112921), (3844, 4420895), (4309, 3943820), (4805, 3536716), (6361, 2671580), (8618, 1971910), (9610, 1768358), (12722, 1335790), (17236, 985955), (19220, 884179), (21545, 788764), (25444, 667895), (31805, 534316), (43090, 394382), (63610, 267158), (86180, 197191), (127220, 133579)]