221490180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 192

約数和(自身を含む): 718502400

約数和(自身を除く): 497012220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 53, 54, 60, 71, 90, 106, 108, 109, 135, 142, 159, 180, 212, 213, 218, 265, 270, 284, 318, 327, 355, 426, 436, 477, 530, 540, 545, 636, 639, 654, 710, 795, 852, 954, 981, 1060, 1065, 1090, 1278, 1308, 1420, 1431, 1590, 1635, 1908, 1917, 1962, 2130, 2180, 2385, 2556, 2862, 2943, 3180, 3195, 3270, 3763, 3834, 3924, 4260, 4770, 4905, 5724, 5777, 5886, 6390, 6540, 7155, 7526, 7668, 7739, 9540, 9585, 9810, 11289, 11554, 11772, 12780, 14310, 14715, 15052, 15478, 17331, 18815, 19170, 19620, 22578, 23108, 23217, 28620, 28885, 29430, 30956, 33867, 34662, 37630, 38340, 38695, 45156, 46434, 51993, 56445, 57770, 58860, 67734, 69324, 69651, 75260, 77390, 86655, 92868, 101601, 103986, 112890, 115540, 116085, 135468, 139302, 154780, 155979, 169335, 173310, 203202, 207972, 208953, 225780, 232170, 259965, 278604, 311958, 338670, 346620, 348255, 406404, 410167, 417906, 464340, 508005, 519930, 623916, 677340, 696510, 779895, 820334, 835812, 1016010, 1039860, 1044765, 1230501, 1393020, 1559790, 1640668, 2032020, 2050835, 2089530, 2461002, 3119580, 3691503, 4101670, 4179060, 4922004, 6152505, 7383006, 8203340, 11074509, 12305010, 14766012, 18457515, 22149018, 24610020, 36915030, 44298036, 55372545, 73830060, 110745090, 221490180]

約数ペア:

[(1, 221490180), (2, 110745090), (3, 73830060), (4, 55372545), (5, 44298036), (6, 36915030), (9, 24610020), (10, 22149018), (12, 18457515), (15, 14766012), (18, 12305010), (20, 11074509), (27, 8203340), (30, 7383006), (36, 6152505), (45, 4922004), (53, 4179060), (54, 4101670), (60, 3691503), (71, 3119580), (90, 2461002), (106, 2089530), (108, 2050835), (109, 2032020), (135, 1640668), (142, 1559790), (159, 1393020), (180, 1230501), (212, 1044765), (213, 1039860), (218, 1016010), (265, 835812), (270, 820334), (284, 779895), (318, 696510), (327, 677340), (355, 623916), (426, 519930), (436, 508005), (477, 464340), (530, 417906), (540, 410167), (545, 406404), (636, 348255), (639, 346620), (654, 338670), (710, 311958), (795, 278604), (852, 259965), (954, 232170), (981, 225780), (1060, 208953), (1065, 207972), (1090, 203202), (1278, 173310), (1308, 169335), (1420, 155979), (1431, 154780), (1590, 139302), (1635, 135468), (1908, 116085), (1917, 115540), (1962, 112890), (2130, 103986), (2180, 101601), (2385, 92868), (2556, 86655), (2862, 77390), (2943, 75260), (3180, 69651), (3195, 69324), (3270, 67734), (3763, 58860), (3834, 57770), (3924, 56445), (4260, 51993), (4770, 46434), (4905, 45156), (5724, 38695), (5777, 38340), (5886, 37630), (6390, 34662), (6540, 33867), (7155, 30956), (7526, 29430), (7668, 28885), (7739, 28620), (9540, 23217), (9585, 23108), (9810, 22578), (11289, 19620), (11554, 19170), (11772, 18815), (12780, 17331), (14310, 15478), (14715, 15052)]