280530440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{369119}}^1$

素因数の和:369149

約数の個数: 32

約数和(自身を含む): 664416000

約数和(自身を除く): 383885560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 369119, 738238, 1476476, 1845595, 2952952, 3691190, 7013261, 7382380, 14026522, 14764760, 28053044, 35066305, 56106088, 70132610, 140265220, 280530440]

約数ペア:

[(1, 280530440), (2, 140265220), (4, 70132610), (5, 56106088), (8, 35066305), (10, 28053044), (19, 14764760), (20, 14026522), (38, 7382380), (40, 7013261), (76, 3691190), (95, 2952952), (152, 1845595), (190, 1476476), (380, 738238), (760, 369119)]