977507860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{569}}^1\times {\mathrm{1753}}^1$

素因数の和:2345

約数の個数: 72

約数和(自身を含む): 2393473320

約数和(自身を除く): 1415965460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 569, 980, 1138, 1753, 2276, 2845, 3506, 3983, 5690, 7012, 7966, 8765, 11380, 12271, 15932, 17530, 19915, 24542, 27881, 35060, 39830, 49084, 55762, 61355, 79660, 85897, 111524, 122710, 139405, 171794, 245420, 278810, 343588, 429485, 557620, 858970, 997457, 1717940, 1994914, 3989828, 4987285, 6982199, 9974570, 13964398, 19949140, 27928796, 34910995, 48875393, 69821990, 97750786, 139643980, 195501572, 244376965, 488753930, 977507860]

約数ペア:

[(1, 977507860), (2, 488753930), (4, 244376965), (5, 195501572), (7, 139643980), (10, 97750786), (14, 69821990), (20, 48875393), (28, 34910995), (35, 27928796), (49, 19949140), (70, 13964398), (98, 9974570), (140, 6982199), (196, 4987285), (245, 3989828), (490, 1994914), (569, 1717940), (980, 997457), (1138, 858970), (1753, 557620), (2276, 429485), (2845, 343588), (3506, 278810), (3983, 245420), (5690, 171794), (7012, 139405), (7966, 122710), (8765, 111524), (11380, 85897), (12271, 79660), (15932, 61355), (17530, 55762), (19915, 49084), (24542, 39830), (27881, 35060)]