1290419020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 3123154944

約数和(自身を除く): 1832735924

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 103, 110, 121, 124, 155, 167, 206, 220, 242, 310, 334, 341, 412, 484, 515, 605, 620, 668, 682, 835, 1030, 1133, 1210, 1364, 1670, 1705, 1837, 2060, 2266, 2420, 3193, 3340, 3410, 3674, 3751, 4532, 5177, 5665, 6386, 6820, 7348, 7502, 9185, 10354, 11330, 12463, 12772, 15004, 15965, 17201, 18370, 18755, 20207, 20708, 22660, 24926, 25885, 31930, 34402, 35123, 36740, 37510, 40414, 49852, 51770, 56947, 62315, 63860, 68804, 70246, 75020, 80828, 86005, 101035, 103540, 113894, 124630, 140492, 172010, 175615, 189211, 202070, 227788, 249260, 284735, 344020, 351230, 378422, 386353, 404140, 533231, 569470, 626417, 702460, 756844, 772706, 946055, 1066462, 1138940, 1252834, 1545412, 1892110, 1931765, 2081321, 2132924, 2505668, 2666155, 3132085, 3784220, 3863530, 4162642, 5332310, 5865541, 6264170, 7727060, 8325284, 10406605, 10664620, 11731082, 12528340, 20813210, 23462164, 29327705, 41626420, 58655410, 64520951, 117310820, 129041902, 258083804, 322604755, 645209510, 1290419020]

約数ペア:

[(1, 1290419020), (2, 645209510), (4, 322604755), (5, 258083804), (10, 129041902), (11, 117310820), (20, 64520951), (22, 58655410), (31, 41626420), (44, 29327705), (55, 23462164), (62, 20813210), (103, 12528340), (110, 11731082), (121, 10664620), (124, 10406605), (155, 8325284), (167, 7727060), (206, 6264170), (220, 5865541), (242, 5332310), (310, 4162642), (334, 3863530), (341, 3784220), (412, 3132085), (484, 2666155), (515, 2505668), (605, 2132924), (620, 2081321), (668, 1931765), (682, 1892110), (835, 1545412), (1030, 1252834), (1133, 1138940), (1210, 1066462), (1364, 946055), (1670, 772706), (1705, 756844), (1837, 702460), (2060, 626417), (2266, 569470), (2420, 533231), (3193, 404140), (3340, 386353), (3410, 378422), (3674, 351230), (3751, 344020), (4532, 284735), (5177, 249260), (5665, 227788), (6386, 202070), (6820, 189211), (7348, 175615), (7502, 172010), (9185, 140492), (10354, 124630), (11330, 113894), (12463, 103540), (12772, 101035), (15004, 86005), (15965, 80828), (17201, 75020), (18370, 70246), (18755, 68804), (20207, 63860), (20708, 62315), (22660, 56947), (24926, 51770), (25885, 49852), (31930, 40414), (34402, 37510), (35123, 36740)]