399251775

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 742452480

約数和(自身を除く): 343200705

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 89, 107, 129, 195, 215, 267, 321, 325, 445, 535, 559, 645, 975, 1075, 1157, 1335, 1391, 1605, 1677, 2225, 2675, 2795, 3225, 3471, 3827, 4173, 4601, 5785, 6675, 6955, 8025, 8385, 9523, 11481, 13803, 13975, 17355, 19135, 20865, 23005, 28569, 28925, 34775, 41925, 47615, 49751, 57405, 59813, 69015, 86775, 95675, 104325, 115025, 123799, 142845, 149253, 179439, 238075, 248755, 287025, 299065, 345075, 371397, 409489, 618995, 714225, 746265, 897195, 1228467, 1243775, 1495325, 1856985, 2047445, 3094975, 3731325, 4485975, 5323357, 6142335, 9284925, 10237225, 15970071, 26616785, 30711675, 79850355, 133083925, 399251775]

約数ペア:

[(1, 399251775), (3, 133083925), (5, 79850355), (13, 30711675), (15, 26616785), (25, 15970071), (39, 10237225), (43, 9284925), (65, 6142335), (75, 5323357), (89, 4485975), (107, 3731325), (129, 3094975), (195, 2047445), (215, 1856985), (267, 1495325), (321, 1243775), (325, 1228467), (445, 897195), (535, 746265), (559, 714225), (645, 618995), (975, 409489), (1075, 371397), (1157, 345075), (1335, 299065), (1391, 287025), (1605, 248755), (1677, 238075), (2225, 179439), (2675, 149253), (2795, 142845), (3225, 123799), (3471, 115025), (3827, 104325), (4173, 95675), (4601, 86775), (5785, 69015), (6675, 59813), (6955, 57405), (8025, 49751), (8385, 47615), (9523, 41925), (11481, 34775), (13803, 28925), (13975, 28569), (17355, 23005), (19135, 20865)]