28705390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:337

約数の個数: 64

約数和(自身を含む): 63037440

約数和(自身を除く): 34332050

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 113, 133, 190, 191, 226, 266, 382, 565, 665, 791, 955, 1130, 1330, 1337, 1582, 1910, 2147, 2674, 3629, 3955, 4294, 6685, 7258, 7910, 10735, 13370, 15029, 18145, 21470, 21583, 25403, 30058, 36290, 43166, 50806, 75145, 107915, 127015, 150290, 151081, 215830, 254030, 302162, 410077, 755405, 820154, 1510810, 2050385, 2870539, 4100770, 5741078, 14352695, 28705390]

約数ペア:

[(1, 28705390), (2, 14352695), (5, 5741078), (7, 4100770), (10, 2870539), (14, 2050385), (19, 1510810), (35, 820154), (38, 755405), (70, 410077), (95, 302162), (113, 254030), (133, 215830), (190, 151081), (191, 150290), (226, 127015), (266, 107915), (382, 75145), (565, 50806), (665, 43166), (791, 36290), (955, 30058), (1130, 25403), (1330, 21583), (1337, 21470), (1582, 18145), (1910, 15029), (2147, 13370), (2674, 10735), (3629, 7910), (3955, 7258), (4294, 6685)]