208815180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{919}}^1$

素因数の和:1479

約数の個数: 96

約数和(自身を含む): 670172160

約数和(自身を除く): 461356980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 541, 919, 1082, 1623, 1838, 2164, 2705, 2757, 3246, 3676, 3787, 4595, 5410, 5514, 6433, 6492, 7574, 8115, 9190, 10820, 11028, 11361, 12866, 13785, 15148, 16230, 18380, 18935, 19299, 22722, 25732, 27570, 32165, 32460, 37870, 38598, 45444, 55140, 56805, 64330, 75740, 77196, 96495, 113610, 128660, 192990, 227220, 385980, 497179, 994358, 1491537, 1988716, 2485895, 2983074, 3480253, 4971790, 5966148, 6960506, 7457685, 9943580, 10440759, 13921012, 14915370, 17401265, 20881518, 29830740, 34802530, 41763036, 52203795, 69605060, 104407590, 208815180]

約数ペア:

[(1, 208815180), (2, 104407590), (3, 69605060), (4, 52203795), (5, 41763036), (6, 34802530), (7, 29830740), (10, 20881518), (12, 17401265), (14, 14915370), (15, 13921012), (20, 10440759), (21, 9943580), (28, 7457685), (30, 6960506), (35, 5966148), (42, 4971790), (60, 3480253), (70, 2983074), (84, 2485895), (105, 1988716), (140, 1491537), (210, 994358), (420, 497179), (541, 385980), (919, 227220), (1082, 192990), (1623, 128660), (1838, 113610), (2164, 96495), (2705, 77196), (2757, 75740), (3246, 64330), (3676, 56805), (3787, 55140), (4595, 45444), (5410, 38598), (5514, 37870), (6433, 32460), (6492, 32165), (7574, 27570), (8115, 25732), (9190, 22722), (10820, 19299), (11028, 18935), (11361, 18380), (12866, 16230), (13785, 15148)]