221473140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1061}}^1$

素因数の和:1158

約数の個数: 144

約数和(自身を含む): 732219264

約数和(自身を除く): 510746124

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 71, 84, 98, 105, 140, 142, 147, 196, 210, 213, 245, 284, 294, 355, 420, 426, 490, 497, 588, 710, 735, 852, 980, 994, 1061, 1065, 1420, 1470, 1491, 1988, 2122, 2130, 2485, 2940, 2982, 3183, 3479, 4244, 4260, 4970, 5305, 5964, 6366, 6958, 7427, 7455, 9940, 10437, 10610, 12732, 13916, 14854, 14910, 15915, 17395, 20874, 21220, 22281, 29708, 29820, 31830, 34790, 37135, 41748, 44562, 51989, 52185, 63660, 69580, 74270, 75331, 89124, 103978, 104370, 111405, 148540, 150662, 155967, 207956, 208740, 222810, 225993, 259945, 301324, 311934, 376655, 445620, 451986, 519890, 527317, 623868, 753310, 779835, 903972, 1039780, 1054634, 1129965, 1506620, 1559670, 1581951, 2109268, 2259930, 2636585, 3119340, 3163902, 3691219, 4519860, 5273170, 6327804, 7382438, 7909755, 10546340, 11073657, 14764876, 15819510, 18456095, 22147314, 31639020, 36912190, 44294628, 55368285, 73824380, 110736570, 221473140]

約数ペア:

[(1, 221473140), (2, 110736570), (3, 73824380), (4, 55368285), (5, 44294628), (6, 36912190), (7, 31639020), (10, 22147314), (12, 18456095), (14, 15819510), (15, 14764876), (20, 11073657), (21, 10546340), (28, 7909755), (30, 7382438), (35, 6327804), (42, 5273170), (49, 4519860), (60, 3691219), (70, 3163902), (71, 3119340), (84, 2636585), (98, 2259930), (105, 2109268), (140, 1581951), (142, 1559670), (147, 1506620), (196, 1129965), (210, 1054634), (213, 1039780), (245, 903972), (284, 779835), (294, 753310), (355, 623868), (420, 527317), (426, 519890), (490, 451986), (497, 445620), (588, 376655), (710, 311934), (735, 301324), (852, 259945), (980, 225993), (994, 222810), (1061, 208740), (1065, 207956), (1420, 155967), (1470, 150662), (1491, 148540), (1988, 111405), (2122, 104370), (2130, 103978), (2485, 89124), (2940, 75331), (2982, 74270), (3183, 69580), (3479, 63660), (4244, 52185), (4260, 51989), (4970, 44562), (5305, 41748), (5964, 37135), (6366, 34790), (6958, 31830), (7427, 29820), (7455, 29708), (9940, 22281), (10437, 21220), (10610, 20874), (12732, 17395), (13916, 15915), (14854, 14910)]