31955220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16139}}^1$

素因数の和:16165

約数の個数: 72

約数和(自身を含む): 105749280

約数和(自身を除く): 73794060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 16139, 32278, 48417, 64556, 80695, 96834, 145251, 161390, 177529, 193668, 242085, 290502, 322780, 355058, 484170, 532587, 581004, 710116, 726255, 887645, 968340, 1065174, 1452510, 1597761, 1775290, 2130348, 2662935, 2905020, 3195522, 3550580, 5325870, 6391044, 7988805, 10651740, 15977610, 31955220]

約数ペア:

[(1, 31955220), (2, 15977610), (3, 10651740), (4, 7988805), (5, 6391044), (6, 5325870), (9, 3550580), (10, 3195522), (11, 2905020), (12, 2662935), (15, 2130348), (18, 1775290), (20, 1597761), (22, 1452510), (30, 1065174), (33, 968340), (36, 887645), (44, 726255), (45, 710116), (55, 581004), (60, 532587), (66, 484170), (90, 355058), (99, 322780), (110, 290502), (132, 242085), (165, 193668), (180, 177529), (198, 161390), (220, 145251), (330, 96834), (396, 80695), (495, 64556), (660, 48417), (990, 32278), (1980, 16139)]