213097720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:989

約数の個数: 128

約数和(自身を含む): 572313600

約数和(自身を除く): 359215880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 31, 34, 40, 44, 55, 62, 68, 85, 88, 110, 124, 136, 155, 170, 187, 220, 248, 310, 340, 341, 374, 440, 527, 620, 680, 682, 748, 919, 935, 1054, 1240, 1364, 1496, 1705, 1838, 1870, 2108, 2635, 2728, 3410, 3676, 3740, 4216, 4595, 5270, 5797, 6820, 7352, 7480, 9190, 10109, 10540, 11594, 13640, 15623, 18380, 20218, 21080, 23188, 28489, 28985, 31246, 36760, 40436, 46376, 50545, 56978, 57970, 62492, 78115, 80872, 101090, 113956, 115940, 124984, 142445, 156230, 171853, 202180, 227912, 231880, 284890, 312460, 313379, 343706, 404360, 484313, 569780, 624920, 626758, 687412, 859265, 968626, 1139560, 1253516, 1374824, 1566895, 1718530, 1937252, 2421565, 2507032, 3133790, 3437060, 3874504, 4843130, 5327443, 6267580, 6874120, 9686260, 10654886, 12535160, 19372520, 21309772, 26637215, 42619544, 53274430, 106548860, 213097720]

約数ペア:

[(1, 213097720), (2, 106548860), (4, 53274430), (5, 42619544), (8, 26637215), (10, 21309772), (11, 19372520), (17, 12535160), (20, 10654886), (22, 9686260), (31, 6874120), (34, 6267580), (40, 5327443), (44, 4843130), (55, 3874504), (62, 3437060), (68, 3133790), (85, 2507032), (88, 2421565), (110, 1937252), (124, 1718530), (136, 1566895), (155, 1374824), (170, 1253516), (187, 1139560), (220, 968626), (248, 859265), (310, 687412), (340, 626758), (341, 624920), (374, 569780), (440, 484313), (527, 404360), (620, 343706), (680, 313379), (682, 312460), (748, 284890), (919, 231880), (935, 227912), (1054, 202180), (1240, 171853), (1364, 156230), (1496, 142445), (1705, 124984), (1838, 115940), (1870, 113956), (2108, 101090), (2635, 80872), (2728, 78115), (3410, 62492), (3676, 57970), (3740, 56978), (4216, 50545), (4595, 46376), (5270, 40436), (5797, 36760), (6820, 31246), (7352, 28985), (7480, 28489), (9190, 23188), (10109, 21080), (10540, 20218), (11594, 18380), (13640, 15623)]