28129220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:309

約数の個数: 96

約数和(自身を含む): 73156608

約数和(自身を除く): 45027388

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 53, 68, 70, 85, 106, 119, 140, 170, 212, 223, 238, 265, 340, 371, 446, 476, 530, 595, 742, 892, 901, 1060, 1115, 1190, 1484, 1561, 1802, 1855, 2230, 2380, 3122, 3604, 3710, 3791, 4460, 4505, 6244, 6307, 7420, 7582, 7805, 9010, 11819, 12614, 15164, 15610, 18020, 18955, 23638, 25228, 26537, 31220, 31535, 37910, 47276, 53074, 59095, 63070, 75820, 82733, 106148, 118190, 126140, 132685, 165466, 200923, 236380, 265370, 330932, 401846, 413665, 530740, 803692, 827330, 1004615, 1406461, 1654660, 2009230, 2812922, 4018460, 5625844, 7032305, 14064610, 28129220]

約数ペア:

[(1, 28129220), (2, 14064610), (4, 7032305), (5, 5625844), (7, 4018460), (10, 2812922), (14, 2009230), (17, 1654660), (20, 1406461), (28, 1004615), (34, 827330), (35, 803692), (53, 530740), (68, 413665), (70, 401846), (85, 330932), (106, 265370), (119, 236380), (140, 200923), (170, 165466), (212, 132685), (223, 126140), (238, 118190), (265, 106148), (340, 82733), (371, 75820), (446, 63070), (476, 59095), (530, 53074), (595, 47276), (742, 37910), (892, 31535), (901, 31220), (1060, 26537), (1115, 25228), (1190, 23638), (1484, 18955), (1561, 18020), (1802, 15610), (1855, 15164), (2230, 12614), (2380, 11819), (3122, 9010), (3604, 7805), (3710, 7582), (3791, 7420), (4460, 6307), (4505, 6244)]