28681590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2239}}^1$

素因数の和:2317

約数の個数: 64

約数和(自身を含む): 79994880

約数和(自身を除く): 51313290

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 61, 70, 105, 122, 183, 210, 305, 366, 427, 610, 854, 915, 1281, 1830, 2135, 2239, 2562, 4270, 4478, 6405, 6717, 11195, 12810, 13434, 15673, 22390, 31346, 33585, 47019, 67170, 78365, 94038, 136579, 156730, 235095, 273158, 409737, 470190, 682895, 819474, 956053, 1365790, 1912106, 2048685, 2868159, 4097370, 4780265, 5736318, 9560530, 14340795, 28681590]

約数ペア:

[(1, 28681590), (2, 14340795), (3, 9560530), (5, 5736318), (6, 4780265), (7, 4097370), (10, 2868159), (14, 2048685), (15, 1912106), (21, 1365790), (30, 956053), (35, 819474), (42, 682895), (61, 470190), (70, 409737), (105, 273158), (122, 235095), (183, 156730), (210, 136579), (305, 94038), (366, 78365), (427, 67170), (610, 47019), (854, 33585), (915, 31346), (1281, 22390), (1830, 15673), (2135, 13434), (2239, 12810), (2562, 11195), (4270, 6717), (4478, 6405)]