20728440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1129}}^1$

素因数の和:1166

約数の個数: 128

約数和(自身を含む): 73224000

約数和(自身を除く): 52495560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 85, 90, 102, 108, 120, 135, 136, 153, 170, 180, 204, 216, 255, 270, 306, 340, 360, 408, 459, 510, 540, 612, 680, 765, 918, 1020, 1080, 1129, 1224, 1530, 1836, 2040, 2258, 2295, 3060, 3387, 3672, 4516, 4590, 5645, 6120, 6774, 9032, 9180, 10161, 11290, 13548, 16935, 18360, 19193, 20322, 22580, 27096, 30483, 33870, 38386, 40644, 45160, 50805, 57579, 60966, 67740, 76772, 81288, 95965, 101610, 115158, 121932, 135480, 152415, 153544, 172737, 191930, 203220, 230316, 243864, 287895, 304830, 345474, 383860, 406440, 460632, 518211, 575790, 609660, 690948, 767720, 863685, 1036422, 1151580, 1219320, 1381896, 1727370, 2072844, 2303160, 2591055, 3454740, 4145688, 5182110, 6909480, 10364220, 20728440]

約数ペア:

[(1, 20728440), (2, 10364220), (3, 6909480), (4, 5182110), (5, 4145688), (6, 3454740), (8, 2591055), (9, 2303160), (10, 2072844), (12, 1727370), (15, 1381896), (17, 1219320), (18, 1151580), (20, 1036422), (24, 863685), (27, 767720), (30, 690948), (34, 609660), (36, 575790), (40, 518211), (45, 460632), (51, 406440), (54, 383860), (60, 345474), (68, 304830), (72, 287895), (85, 243864), (90, 230316), (102, 203220), (108, 191930), (120, 172737), (135, 153544), (136, 152415), (153, 135480), (170, 121932), (180, 115158), (204, 101610), (216, 95965), (255, 81288), (270, 76772), (306, 67740), (340, 60966), (360, 57579), (408, 50805), (459, 45160), (510, 40644), (540, 38386), (612, 33870), (680, 30483), (765, 27096), (918, 22580), (1020, 20322), (1080, 19193), (1129, 18360), (1224, 16935), (1530, 13548), (1836, 11290), (2040, 10161), (2258, 9180), (2295, 9032), (3060, 6774), (3387, 6120), (3672, 5645), (4516, 4590)]