202101720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{739}}^1$

素因数の和:849

約数の個数: 128

約数和(自身を含む): 632966400

約数和(自身を除く): 430864680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 53, 60, 86, 106, 120, 129, 159, 172, 212, 215, 258, 265, 318, 344, 424, 430, 516, 530, 636, 645, 739, 795, 860, 1032, 1060, 1272, 1290, 1478, 1590, 1720, 2120, 2217, 2279, 2580, 2956, 3180, 3695, 4434, 4558, 5160, 5912, 6360, 6837, 7390, 8868, 9116, 11085, 11395, 13674, 14780, 17736, 18232, 22170, 22790, 27348, 29560, 31777, 34185, 39167, 44340, 45580, 54696, 63554, 68370, 78334, 88680, 91160, 95331, 117501, 127108, 136740, 156668, 158885, 190662, 195835, 235002, 254216, 273480, 313336, 317770, 381324, 391670, 470004, 476655, 587505, 635540, 762648, 783340, 940008, 953310, 1175010, 1271080, 1566680, 1684181, 1906620, 2350020, 3368362, 3813240, 4700040, 5052543, 6736724, 8420905, 10105086, 13473448, 16841810, 20210172, 25262715, 33683620, 40420344, 50525430, 67367240, 101050860, 202101720]

約数ペア:

[(1, 202101720), (2, 101050860), (3, 67367240), (4, 50525430), (5, 40420344), (6, 33683620), (8, 25262715), (10, 20210172), (12, 16841810), (15, 13473448), (20, 10105086), (24, 8420905), (30, 6736724), (40, 5052543), (43, 4700040), (53, 3813240), (60, 3368362), (86, 2350020), (106, 1906620), (120, 1684181), (129, 1566680), (159, 1271080), (172, 1175010), (212, 953310), (215, 940008), (258, 783340), (265, 762648), (318, 635540), (344, 587505), (424, 476655), (430, 470004), (516, 391670), (530, 381324), (636, 317770), (645, 313336), (739, 273480), (795, 254216), (860, 235002), (1032, 195835), (1060, 190662), (1272, 158885), (1290, 156668), (1478, 136740), (1590, 127108), (1720, 117501), (2120, 95331), (2217, 91160), (2279, 88680), (2580, 78334), (2956, 68370), (3180, 63554), (3695, 54696), (4434, 45580), (4558, 44340), (5160, 39167), (5912, 34185), (6360, 31777), (6837, 29560), (7390, 27348), (8868, 22790), (9116, 22170), (11085, 18232), (11395, 17736), (13674, 14780)]