397841920

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{149}}^2$

素因数の和:328

約数の個数: 120

約数和(自身を含む): 1097523504

約数和(自身を除く): 699681584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 149, 160, 224, 256, 280, 298, 320, 448, 512, 560, 596, 640, 745, 896, 1043, 1120, 1192, 1280, 1490, 1792, 2086, 2240, 2384, 2560, 2980, 3584, 4172, 4480, 4768, 5215, 5960, 8344, 8960, 9536, 10430, 11920, 16688, 17920, 19072, 20860, 22201, 23840, 33376, 38144, 41720, 44402, 47680, 66752, 76288, 83440, 88804, 95360, 111005, 133504, 155407, 166880, 177608, 190720, 222010, 267008, 310814, 333760, 355216, 381440, 444020, 534016, 621628, 667520, 710432, 777035, 888040, 1243256, 1335040, 1420864, 1554070, 1776080, 2486512, 2670080, 2841728, 3108140, 3552160, 4973024, 5683456, 6216280, 7104320, 9946048, 11366912, 12432560, 14208640, 19892096, 24865120, 28417280, 39784192, 49730240, 56834560, 79568384, 99460480, 198920960, 397841920]

約数ペア:

[(1, 397841920), (2, 198920960), (4, 99460480), (5, 79568384), (7, 56834560), (8, 49730240), (10, 39784192), (14, 28417280), (16, 24865120), (20, 19892096), (28, 14208640), (32, 12432560), (35, 11366912), (40, 9946048), (56, 7104320), (64, 6216280), (70, 5683456), (80, 4973024), (112, 3552160), (128, 3108140), (140, 2841728), (149, 2670080), (160, 2486512), (224, 1776080), (256, 1554070), (280, 1420864), (298, 1335040), (320, 1243256), (448, 888040), (512, 777035), (560, 710432), (596, 667520), (640, 621628), (745, 534016), (896, 444020), (1043, 381440), (1120, 355216), (1192, 333760), (1280, 310814), (1490, 267008), (1792, 222010), (2086, 190720), (2240, 177608), (2384, 166880), (2560, 155407), (2980, 133504), (3584, 111005), (4172, 95360), (4480, 88804), (4768, 83440), (5215, 76288), (5960, 66752), (8344, 47680), (8960, 44402), (9536, 41720), (10430, 38144), (11920, 33376), (16688, 23840), (17920, 22201), (19072, 20860)]