28457380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 72253440

約数和(自身を除く): 43796060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 79, 83, 124, 140, 155, 158, 166, 217, 310, 316, 332, 395, 415, 434, 553, 581, 620, 790, 830, 868, 1085, 1106, 1162, 1580, 1660, 2170, 2212, 2324, 2449, 2573, 2765, 2905, 4340, 4898, 5146, 5530, 5810, 6557, 9796, 10292, 11060, 11620, 12245, 12865, 13114, 17143, 18011, 24490, 25730, 26228, 32785, 34286, 36022, 45899, 48980, 51460, 65570, 68572, 72044, 85715, 90055, 91798, 131140, 171430, 180110, 183596, 203267, 229495, 342860, 360220, 406534, 458990, 813068, 917980, 1016335, 1422869, 2032670, 2845738, 4065340, 5691476, 7114345, 14228690, 28457380]

約数ペア:

[(1, 28457380), (2, 14228690), (4, 7114345), (5, 5691476), (7, 4065340), (10, 2845738), (14, 2032670), (20, 1422869), (28, 1016335), (31, 917980), (35, 813068), (62, 458990), (70, 406534), (79, 360220), (83, 342860), (124, 229495), (140, 203267), (155, 183596), (158, 180110), (166, 171430), (217, 131140), (310, 91798), (316, 90055), (332, 85715), (395, 72044), (415, 68572), (434, 65570), (553, 51460), (581, 48980), (620, 45899), (790, 36022), (830, 34286), (868, 32785), (1085, 26228), (1106, 25730), (1162, 24490), (1580, 18011), (1660, 17143), (2170, 13114), (2212, 12865), (2324, 12245), (2449, 11620), (2573, 11060), (2765, 10292), (2905, 9796), (4340, 6557), (4898, 5810), (5146, 5530)]