400067640

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{52919}}^1$

素因数の和:52946

約数の個数: 128

約数和(自身を含む): 1524096000

約数和(自身を除く): 1124028360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 52919, 105838, 158757, 211676, 264595, 317514, 370433, 423352, 476271, 529190, 635028, 740866, 793785, 952542, 1058380, 1111299, 1270056, 1428813, 1481732, 1587570, 1852165, 1905084, 2116760, 2222598, 2381355, 2857626, 2963464, 3175140, 3333897, 3704330, 3810168, 4445196, 4762710, 5556495, 5715252, 6350280, 6667794, 7144065, 7408660, 8890392, 9525420, 10001691, 11112990, 11430504, 13335588, 14288130, 14817320, 16669485, 19050840, 20003382, 22225980, 26671176, 28576260, 33338970, 40006764, 44451960, 50008455, 57152520, 66677940, 80013528, 100016910, 133355880, 200033820, 400067640]

約数ペア:

[(1, 400067640), (2, 200033820), (3, 133355880), (4, 100016910), (5, 80013528), (6, 66677940), (7, 57152520), (8, 50008455), (9, 44451960), (10, 40006764), (12, 33338970), (14, 28576260), (15, 26671176), (18, 22225980), (20, 20003382), (21, 19050840), (24, 16669485), (27, 14817320), (28, 14288130), (30, 13335588), (35, 11430504), (36, 11112990), (40, 10001691), (42, 9525420), (45, 8890392), (54, 7408660), (56, 7144065), (60, 6667794), (63, 6350280), (70, 5715252), (72, 5556495), (84, 4762710), (90, 4445196), (105, 3810168), (108, 3704330), (120, 3333897), (126, 3175140), (135, 2963464), (140, 2857626), (168, 2381355), (180, 2222598), (189, 2116760), (210, 1905084), (216, 1852165), (252, 1587570), (270, 1481732), (280, 1428813), (315, 1270056), (360, 1111299), (378, 1058380), (420, 952542), (504, 793785), (540, 740866), (630, 635028), (756, 529190), (840, 476271), (945, 423352), (1080, 370433), (1260, 317514), (1512, 264595), (1890, 211676), (2520, 158757), (3780, 105838), (7560, 52919)]