218158780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 566286336

約数和(自身を除く): 348127556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 43, 49, 62, 70, 86, 98, 124, 140, 155, 167, 172, 196, 215, 217, 245, 301, 310, 334, 430, 434, 490, 602, 620, 668, 835, 860, 868, 980, 1085, 1169, 1204, 1333, 1505, 1519, 1670, 2107, 2170, 2338, 2666, 3010, 3038, 3340, 4214, 4340, 4676, 5177, 5332, 5845, 6020, 6076, 6665, 7181, 7595, 8183, 8428, 9331, 10354, 10535, 11690, 13330, 14362, 15190, 16366, 18662, 20708, 21070, 23380, 25885, 26660, 28724, 30380, 32732, 35905, 36239, 37324, 40915, 42140, 46655, 50267, 51770, 65317, 71810, 72478, 81830, 93310, 100534, 103540, 130634, 143620, 144956, 163660, 181195, 186620, 201068, 222611, 251335, 253673, 261268, 326585, 351869, 362390, 445222, 502670, 507346, 653170, 703738, 724780, 890444, 1005340, 1014692, 1113055, 1268365, 1306340, 1407476, 1558277, 1759345, 2226110, 2536730, 3116554, 3518690, 4452220, 5073460, 6233108, 7037380, 7791385, 10907939, 15582770, 21815878, 31165540, 43631756, 54539695, 109079390, 218158780]

約数ペア:

[(1, 218158780), (2, 109079390), (4, 54539695), (5, 43631756), (7, 31165540), (10, 21815878), (14, 15582770), (20, 10907939), (28, 7791385), (31, 7037380), (35, 6233108), (43, 5073460), (49, 4452220), (62, 3518690), (70, 3116554), (86, 2536730), (98, 2226110), (124, 1759345), (140, 1558277), (155, 1407476), (167, 1306340), (172, 1268365), (196, 1113055), (215, 1014692), (217, 1005340), (245, 890444), (301, 724780), (310, 703738), (334, 653170), (430, 507346), (434, 502670), (490, 445222), (602, 362390), (620, 351869), (668, 326585), (835, 261268), (860, 253673), (868, 251335), (980, 222611), (1085, 201068), (1169, 186620), (1204, 181195), (1333, 163660), (1505, 144956), (1519, 143620), (1670, 130634), (2107, 103540), (2170, 100534), (2338, 93310), (2666, 81830), (3010, 72478), (3038, 71810), (3340, 65317), (4214, 51770), (4340, 50267), (4676, 46655), (5177, 42140), (5332, 40915), (5845, 37324), (6020, 36239), (6076, 35905), (6665, 32732), (7181, 30380), (7595, 28724), (8183, 26660), (8428, 25885), (9331, 23380), (10354, 21070), (10535, 20708), (11690, 18662), (13330, 16366), (14362, 15190)]