208977340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{821}}^1$

素因数の和:943

約数の個数: 96

約数和(自身を含む): 522002880

約数和(自身を除く): 313025540

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 89, 110, 130, 143, 178, 220, 260, 286, 356, 445, 572, 715, 821, 890, 979, 1157, 1430, 1642, 1780, 1958, 2314, 2860, 3284, 3916, 4105, 4628, 4895, 5785, 8210, 9031, 9790, 10673, 11570, 12727, 16420, 18062, 19580, 21346, 23140, 25454, 36124, 42692, 45155, 50908, 53365, 63635, 73069, 90310, 106730, 117403, 127270, 146138, 180620, 213460, 234806, 254540, 292276, 365345, 469612, 587015, 730690, 803759, 949897, 1174030, 1461380, 1607518, 1899794, 2348060, 3215036, 3799588, 4018795, 4749485, 8037590, 9498970, 10448867, 16075180, 18997940, 20897734, 41795468, 52244335, 104488670, 208977340]

約数ペア:

[(1, 208977340), (2, 104488670), (4, 52244335), (5, 41795468), (10, 20897734), (11, 18997940), (13, 16075180), (20, 10448867), (22, 9498970), (26, 8037590), (44, 4749485), (52, 4018795), (55, 3799588), (65, 3215036), (89, 2348060), (110, 1899794), (130, 1607518), (143, 1461380), (178, 1174030), (220, 949897), (260, 803759), (286, 730690), (356, 587015), (445, 469612), (572, 365345), (715, 292276), (821, 254540), (890, 234806), (979, 213460), (1157, 180620), (1430, 146138), (1642, 127270), (1780, 117403), (1958, 106730), (2314, 90310), (2860, 73069), (3284, 63635), (3916, 53365), (4105, 50908), (4628, 45155), (4895, 42692), (5785, 36124), (8210, 25454), (9031, 23140), (9790, 21346), (10673, 19580), (11570, 18062), (12727, 16420)]