72857920

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:320

約数の個数: 112

約数和(自身を含む): 187634880

約数和(自身を除く): 114776960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 59, 64, 68, 80, 85, 118, 136, 160, 170, 227, 236, 272, 295, 320, 340, 454, 472, 544, 590, 680, 908, 944, 1003, 1088, 1135, 1180, 1360, 1816, 1888, 2006, 2270, 2360, 2720, 3632, 3776, 3859, 4012, 4540, 4720, 5015, 5440, 7264, 7718, 8024, 9080, 9440, 10030, 13393, 14528, 15436, 16048, 18160, 18880, 19295, 20060, 26786, 30872, 32096, 36320, 38590, 40120, 53572, 61744, 64192, 66965, 72640, 77180, 80240, 107144, 123488, 133930, 154360, 160480, 214288, 227681, 246976, 267860, 308720, 320960, 428576, 455362, 535720, 617440, 857152, 910724, 1071440, 1138405, 1234880, 1821448, 2142880, 2276810, 3642896, 4285760, 4553620, 7285792, 9107240, 14571584, 18214480, 36428960, 72857920]

約数ペア:

[(1, 72857920), (2, 36428960), (4, 18214480), (5, 14571584), (8, 9107240), (10, 7285792), (16, 4553620), (17, 4285760), (20, 3642896), (32, 2276810), (34, 2142880), (40, 1821448), (59, 1234880), (64, 1138405), (68, 1071440), (80, 910724), (85, 857152), (118, 617440), (136, 535720), (160, 455362), (170, 428576), (227, 320960), (236, 308720), (272, 267860), (295, 246976), (320, 227681), (340, 214288), (454, 160480), (472, 154360), (544, 133930), (590, 123488), (680, 107144), (908, 80240), (944, 77180), (1003, 72640), (1088, 66965), (1135, 64192), (1180, 61744), (1360, 53572), (1816, 40120), (1888, 38590), (2006, 36320), (2270, 32096), (2360, 30872), (2720, 26786), (3632, 20060), (3776, 19295), (3859, 18880), (4012, 18160), (4540, 16048), (4720, 15436), (5015, 14528), (5440, 13393), (7264, 10030), (7718, 9440), (8024, 9080)]