30689260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{983}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 74059776

約数和(自身を除く): 43370516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 983, 1115, 1561, 1966, 2230, 3122, 3932, 4460, 4915, 6244, 6881, 7805, 9830, 13762, 15610, 19660, 27524, 31220, 34405, 68810, 137620, 219209, 438418, 876836, 1096045, 1534463, 2192090, 3068926, 4384180, 6137852, 7672315, 15344630, 30689260]

約数ペア:

[(1, 30689260), (2, 15344630), (4, 7672315), (5, 6137852), (7, 4384180), (10, 3068926), (14, 2192090), (20, 1534463), (28, 1096045), (35, 876836), (70, 438418), (140, 219209), (223, 137620), (446, 68810), (892, 34405), (983, 31220), (1115, 27524), (1561, 19660), (1966, 15610), (2230, 13762), (3122, 9830), (3932, 7805), (4460, 6881), (4915, 6244)]