28354020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^2\times {\mathrm{127}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 81349632

約数和(自身を除く): 52995612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 127, 183, 244, 254, 305, 366, 381, 508, 610, 635, 732, 762, 915, 1220, 1270, 1524, 1830, 1905, 2540, 3660, 3721, 3810, 7442, 7620, 7747, 11163, 14884, 15494, 18605, 22326, 23241, 30988, 37210, 38735, 44652, 46482, 55815, 74420, 77470, 92964, 111630, 116205, 154940, 223260, 232410, 464820, 472567, 945134, 1417701, 1890268, 2362835, 2835402, 4725670, 5670804, 7088505, 9451340, 14177010, 28354020]

約数ペア:

[(1, 28354020), (2, 14177010), (3, 9451340), (4, 7088505), (5, 5670804), (6, 4725670), (10, 2835402), (12, 2362835), (15, 1890268), (20, 1417701), (30, 945134), (60, 472567), (61, 464820), (122, 232410), (127, 223260), (183, 154940), (244, 116205), (254, 111630), (305, 92964), (366, 77470), (381, 74420), (508, 55815), (610, 46482), (635, 44652), (732, 38735), (762, 37210), (915, 30988), (1220, 23241), (1270, 22326), (1524, 18605), (1830, 15494), (1905, 14884), (2540, 11163), (3660, 7747), (3721, 7620), (3810, 7442)]