208545990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{4231}}^1$

素因数の和:4325

約数の個数: 64

約数和(自身を含む): 526528512

約数和(自身を除く): 317982522

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 53, 62, 93, 106, 155, 159, 186, 265, 310, 318, 465, 530, 795, 930, 1590, 1643, 3286, 4231, 4929, 8215, 8462, 9858, 12693, 16430, 21155, 24645, 25386, 42310, 49290, 63465, 126930, 131161, 224243, 262322, 393483, 448486, 655805, 672729, 786966, 1121215, 1311610, 1345458, 1967415, 2242430, 3363645, 3934830, 6727290, 6951533, 13903066, 20854599, 34757665, 41709198, 69515330, 104272995, 208545990]

約数ペア:

[(1, 208545990), (2, 104272995), (3, 69515330), (5, 41709198), (6, 34757665), (10, 20854599), (15, 13903066), (30, 6951533), (31, 6727290), (53, 3934830), (62, 3363645), (93, 2242430), (106, 1967415), (155, 1345458), (159, 1311610), (186, 1121215), (265, 786966), (310, 672729), (318, 655805), (465, 448486), (530, 393483), (795, 262322), (930, 224243), (1590, 131161), (1643, 126930), (3286, 63465), (4231, 49290), (4929, 42310), (8215, 25386), (8462, 24645), (9858, 21155), (12693, 16430)]