388245760

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{43331}}^1$

素因数の和:43359

約数の個数: 72

約数和(自身を含む): 1062847296

約数和(自身を除く): 674601536

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 43331, 86662, 173324, 216655, 303317, 346648, 433310, 606634, 693296, 866620, 1213268, 1386592, 1516585, 1733240, 2426536, 2773184, 3033170, 3466480, 4853072, 5546368, 6066340, 6932960, 9706144, 11092736, 12132680, 13865920, 19412288, 24265360, 27731840, 38824576, 48530720, 55463680, 77649152, 97061440, 194122880, 388245760]

約数ペア:

[(1, 388245760), (2, 194122880), (4, 97061440), (5, 77649152), (7, 55463680), (8, 48530720), (10, 38824576), (14, 27731840), (16, 24265360), (20, 19412288), (28, 13865920), (32, 12132680), (35, 11092736), (40, 9706144), (56, 6932960), (64, 6066340), (70, 5546368), (80, 4853072), (112, 3466480), (128, 3033170), (140, 2773184), (160, 2426536), (224, 1733240), (256, 1516585), (280, 1386592), (320, 1213268), (448, 866620), (560, 693296), (640, 606634), (896, 433310), (1120, 346648), (1280, 303317), (1792, 216655), (2240, 173324), (4480, 86662), (8960, 43331)]