639278520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{72977}}^1$

素因数の和:73064

約数の個数: 64

約数和(自身を含む): 1944133920

約数和(自身を除く): 1304855400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 438, 584, 730, 876, 1095, 1460, 1752, 2190, 2920, 4380, 8760, 72977, 145954, 218931, 291908, 364885, 437862, 583816, 729770, 875724, 1094655, 1459540, 1751448, 2189310, 2919080, 4378620, 5327321, 8757240, 10654642, 15981963, 21309284, 26636605, 31963926, 42618568, 53273210, 63927852, 79909815, 106546420, 127855704, 159819630, 213092840, 319639260, 639278520]

約数ペア:

[(1, 639278520), (2, 319639260), (3, 213092840), (4, 159819630), (5, 127855704), (6, 106546420), (8, 79909815), (10, 63927852), (12, 53273210), (15, 42618568), (20, 31963926), (24, 26636605), (30, 21309284), (40, 15981963), (60, 10654642), (73, 8757240), (120, 5327321), (146, 4378620), (219, 2919080), (292, 2189310), (365, 1751448), (438, 1459540), (584, 1094655), (730, 875724), (876, 729770), (1095, 583816), (1460, 437862), (1752, 364885), (2190, 291908), (2920, 218931), (4380, 145954), (8760, 72977)]