28751220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1439}}^1$

素因数の和:1494

約数の個数: 96

約数和(自身を含む): 91929600

約数和(自身を除く): 63178380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 90, 108, 111, 135, 148, 180, 185, 222, 270, 333, 370, 444, 540, 555, 666, 740, 999, 1110, 1332, 1439, 1665, 1998, 2220, 2878, 3330, 3996, 4317, 4995, 5756, 6660, 7195, 8634, 9990, 12951, 14390, 17268, 19980, 21585, 25902, 28780, 38853, 43170, 51804, 53243, 64755, 77706, 86340, 106486, 129510, 155412, 159729, 194265, 212972, 259020, 266215, 319458, 388530, 479187, 532430, 638916, 777060, 798645, 958374, 1064860, 1437561, 1597290, 1916748, 2395935, 2875122, 3194580, 4791870, 5750244, 7187805, 9583740, 14375610, 28751220]

約数ペア:

[(1, 28751220), (2, 14375610), (3, 9583740), (4, 7187805), (5, 5750244), (6, 4791870), (9, 3194580), (10, 2875122), (12, 2395935), (15, 1916748), (18, 1597290), (20, 1437561), (27, 1064860), (30, 958374), (36, 798645), (37, 777060), (45, 638916), (54, 532430), (60, 479187), (74, 388530), (90, 319458), (108, 266215), (111, 259020), (135, 212972), (148, 194265), (180, 159729), (185, 155412), (222, 129510), (270, 106486), (333, 86340), (370, 77706), (444, 64755), (540, 53243), (555, 51804), (666, 43170), (740, 38853), (999, 28780), (1110, 25902), (1332, 21585), (1439, 19980), (1665, 17268), (1998, 14390), (2220, 12951), (2878, 9990), (3330, 8634), (3996, 7195), (4317, 6660), (4995, 5756)]