1988774270

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{11243}}^1$

素因数の和:11302

約数の個数: 72

約数和(自身を含む): 4395347064

約数和(自身を除く): 2406572794

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 361, 490, 665, 722, 931, 1330, 1805, 1862, 2527, 3610, 4655, 5054, 9310, 11243, 12635, 17689, 22486, 25270, 35378, 56215, 78701, 88445, 112430, 157402, 176890, 213617, 393505, 427234, 550907, 787010, 1068085, 1101814, 1495319, 2136170, 2754535, 2990638, 4058723, 5509070, 7476595, 8117446, 10467233, 14953190, 20293615, 20934466, 28411061, 40587230, 52336165, 56822122, 104672330, 142055305, 198877427, 284110610, 397754854, 994387135, 1988774270]

約数ペア:

[(1, 1988774270), (2, 994387135), (5, 397754854), (7, 284110610), (10, 198877427), (14, 142055305), (19, 104672330), (35, 56822122), (38, 52336165), (49, 40587230), (70, 28411061), (95, 20934466), (98, 20293615), (133, 14953190), (190, 10467233), (245, 8117446), (266, 7476595), (361, 5509070), (490, 4058723), (665, 2990638), (722, 2754535), (931, 2136170), (1330, 1495319), (1805, 1101814), (1862, 1068085), (2527, 787010), (3610, 550907), (4655, 427234), (5054, 393505), (9310, 213617), (11243, 176890), (12635, 157402), (17689, 112430), (22486, 88445), (25270, 78701), (35378, 56215)]