28787660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 96

約数和(自身を含む): 71124480

約数和(自身を除く): 42336820

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 71, 76, 95, 97, 110, 142, 190, 194, 209, 220, 284, 355, 380, 388, 418, 485, 710, 781, 836, 970, 1045, 1067, 1349, 1420, 1562, 1843, 1940, 2090, 2134, 2698, 3124, 3686, 3905, 4180, 4268, 5335, 5396, 6745, 6887, 7372, 7810, 9215, 10670, 13490, 13774, 14839, 15620, 18430, 20273, 21340, 26980, 27548, 29678, 34435, 36860, 40546, 59356, 68870, 74195, 75757, 81092, 101365, 130853, 137740, 148390, 151514, 202730, 261706, 296780, 303028, 378785, 405460, 523412, 654265, 757570, 1308530, 1439383, 1515140, 2617060, 2878766, 5757532, 7196915, 14393830, 28787660]

約数ペア:

[(1, 28787660), (2, 14393830), (4, 7196915), (5, 5757532), (10, 2878766), (11, 2617060), (19, 1515140), (20, 1439383), (22, 1308530), (38, 757570), (44, 654265), (55, 523412), (71, 405460), (76, 378785), (95, 303028), (97, 296780), (110, 261706), (142, 202730), (190, 151514), (194, 148390), (209, 137740), (220, 130853), (284, 101365), (355, 81092), (380, 75757), (388, 74195), (418, 68870), (485, 59356), (710, 40546), (781, 36860), (836, 34435), (970, 29678), (1045, 27548), (1067, 26980), (1349, 21340), (1420, 20273), (1562, 18430), (1843, 15620), (1940, 14839), (2090, 13774), (2134, 13490), (2698, 10670), (3124, 9215), (3686, 7810), (3905, 7372), (4180, 6887), (4268, 6745), (5335, 5396)]