28812640

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:240

約数の個数: 96

約数和(自身を含む): 72624384

約数和(自身を除く): 43811744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 74, 80, 124, 148, 155, 157, 160, 185, 248, 296, 310, 314, 370, 496, 592, 620, 628, 740, 785, 992, 1147, 1184, 1240, 1256, 1480, 1570, 2294, 2480, 2512, 2960, 3140, 4588, 4867, 4960, 5024, 5735, 5809, 5920, 6280, 9176, 9734, 11470, 11618, 12560, 18352, 19468, 22940, 23236, 24335, 25120, 29045, 36704, 38936, 45880, 46472, 48670, 58090, 77872, 91760, 92944, 97340, 116180, 155744, 180079, 183520, 185888, 194680, 232360, 360158, 389360, 464720, 720316, 778720, 900395, 929440, 1440632, 1800790, 2881264, 3601580, 5762528, 7203160, 14406320, 28812640]

約数ペア:

[(1, 28812640), (2, 14406320), (4, 7203160), (5, 5762528), (8, 3601580), (10, 2881264), (16, 1800790), (20, 1440632), (31, 929440), (32, 900395), (37, 778720), (40, 720316), (62, 464720), (74, 389360), (80, 360158), (124, 232360), (148, 194680), (155, 185888), (157, 183520), (160, 180079), (185, 155744), (248, 116180), (296, 97340), (310, 92944), (314, 91760), (370, 77872), (496, 58090), (592, 48670), (620, 46472), (628, 45880), (740, 38936), (785, 36704), (992, 29045), (1147, 25120), (1184, 24335), (1240, 23236), (1256, 22940), (1480, 19468), (1570, 18352), (2294, 12560), (2480, 11618), (2512, 11470), (2960, 9734), (3140, 9176), (4588, 6280), (4867, 5920), (4960, 5809), (5024, 5735)]