28671860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1721}}^1$

素因数の和:1761

約数の個数: 72

約数和(自身を含む): 74204424

約数和(自身を除く): 45532564

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1190, 1666, 1721, 2380, 3332, 3442, 4165, 6884, 8330, 8605, 12047, 16660, 17210, 24094, 29257, 34420, 48188, 58514, 60235, 84329, 117028, 120470, 146285, 168658, 204799, 240940, 292570, 337316, 409598, 421645, 585140, 819196, 843290, 1023995, 1433593, 1686580, 2047990, 2867186, 4095980, 5734372, 7167965, 14335930, 28671860]

約数ペア:

[(1, 28671860), (2, 14335930), (4, 7167965), (5, 5734372), (7, 4095980), (10, 2867186), (14, 2047990), (17, 1686580), (20, 1433593), (28, 1023995), (34, 843290), (35, 819196), (49, 585140), (68, 421645), (70, 409598), (85, 337316), (98, 292570), (119, 240940), (140, 204799), (170, 168658), (196, 146285), (238, 120470), (245, 117028), (340, 84329), (476, 60235), (490, 58514), (595, 48188), (833, 34420), (980, 29257), (1190, 24094), (1666, 17210), (1721, 16660), (2380, 12047), (3332, 8605), (3442, 8330), (4165, 6884)]