321720912

素因数分解:

$2^4\times 3^2\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:425

約数の個数: 120

約数和(自身を含む): 922064000

約数和(自身を除く): 600343088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 103, 109, 144, 199, 206, 218, 309, 327, 398, 412, 436, 597, 618, 654, 796, 824, 872, 927, 981, 1194, 1236, 1308, 1592, 1648, 1744, 1791, 1854, 1962, 2388, 2472, 2616, 3184, 3582, 3708, 3924, 4776, 4944, 5232, 7164, 7416, 7848, 9552, 11227, 14328, 14832, 15696, 20497, 21691, 22454, 28656, 33681, 40994, 43382, 44908, 61491, 65073, 67362, 81988, 86764, 89816, 101043, 122982, 130146, 134724, 163976, 173528, 179632, 184473, 195219, 202086, 245964, 260292, 269448, 327952, 347056, 368946, 390438, 404172, 491928, 520584, 538896, 737892, 780876, 808344, 983856, 1041168, 1475784, 1561752, 1616688, 2234173, 2951568, 3123504, 4468346, 6702519, 8936692, 13405038, 17873384, 20107557, 26810076, 35746768, 40215114, 53620152, 80430228, 107240304, 160860456, 321720912]

約数ペア:

[(1, 321720912), (2, 160860456), (3, 107240304), (4, 80430228), (6, 53620152), (8, 40215114), (9, 35746768), (12, 26810076), (16, 20107557), (18, 17873384), (24, 13405038), (36, 8936692), (48, 6702519), (72, 4468346), (103, 3123504), (109, 2951568), (144, 2234173), (199, 1616688), (206, 1561752), (218, 1475784), (309, 1041168), (327, 983856), (398, 808344), (412, 780876), (436, 737892), (597, 538896), (618, 520584), (654, 491928), (796, 404172), (824, 390438), (872, 368946), (927, 347056), (981, 327952), (1194, 269448), (1236, 260292), (1308, 245964), (1592, 202086), (1648, 195219), (1744, 184473), (1791, 179632), (1854, 173528), (1962, 163976), (2388, 134724), (2472, 130146), (2616, 122982), (3184, 101043), (3582, 89816), (3708, 86764), (3924, 81988), (4776, 67362), (4944, 65073), (5232, 61491), (7164, 44908), (7416, 43382), (7848, 40994), (9552, 33681), (11227, 28656), (14328, 22454), (14832, 21691), (15696, 20497)]