280858190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{977}}^1$

素因数の和:1109

約数の個数: 64

約数和(自身を含む): 570369600

約数和(自身を除く): 289511410

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 89, 95, 170, 178, 190, 323, 445, 646, 890, 977, 1513, 1615, 1691, 1954, 3026, 3230, 3382, 4885, 7565, 8455, 9770, 15130, 16609, 16910, 18563, 28747, 33218, 37126, 57494, 83045, 86953, 92815, 143735, 166090, 173906, 185630, 287470, 315571, 434765, 631142, 869530, 1478201, 1577855, 1652107, 2956402, 3155710, 3304214, 7391005, 8260535, 14782010, 16521070, 28085819, 56171638, 140429095, 280858190]

約数ペア:

[(1, 280858190), (2, 140429095), (5, 56171638), (10, 28085819), (17, 16521070), (19, 14782010), (34, 8260535), (38, 7391005), (85, 3304214), (89, 3155710), (95, 2956402), (170, 1652107), (178, 1577855), (190, 1478201), (323, 869530), (445, 631142), (646, 434765), (890, 315571), (977, 287470), (1513, 185630), (1615, 173906), (1691, 166090), (1954, 143735), (3026, 92815), (3230, 86953), (3382, 83045), (4885, 57494), (7565, 37126), (8455, 33218), (9770, 28747), (15130, 18563), (16609, 16910)]