158252800

素因数分解:

$2^8\times 5^2\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:418

約数の個数: 108

約数和(自身を含む): 397925920

約数和(自身を除く): 239673120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 128, 158, 160, 200, 256, 313, 316, 320, 395, 400, 626, 632, 640, 790, 800, 1252, 1264, 1280, 1565, 1580, 1600, 1975, 2504, 2528, 3130, 3160, 3200, 3950, 5008, 5056, 6260, 6320, 6400, 7825, 7900, 10016, 10112, 12520, 12640, 15650, 15800, 20032, 20224, 24727, 25040, 25280, 31300, 31600, 40064, 49454, 50080, 50560, 62600, 63200, 80128, 98908, 100160, 101120, 123635, 125200, 126400, 197816, 200320, 247270, 250400, 252800, 395632, 400640, 494540, 500800, 505600, 618175, 791264, 989080, 1001600, 1236350, 1582528, 1978160, 2003200, 2472700, 3165056, 3956320, 4945400, 6330112, 7912640, 9890800, 15825280, 19781600, 31650560, 39563200, 79126400, 158252800]

約数ペア:

[(1, 158252800), (2, 79126400), (4, 39563200), (5, 31650560), (8, 19781600), (10, 15825280), (16, 9890800), (20, 7912640), (25, 6330112), (32, 4945400), (40, 3956320), (50, 3165056), (64, 2472700), (79, 2003200), (80, 1978160), (100, 1582528), (128, 1236350), (158, 1001600), (160, 989080), (200, 791264), (256, 618175), (313, 505600), (316, 500800), (320, 494540), (395, 400640), (400, 395632), (626, 252800), (632, 250400), (640, 247270), (790, 200320), (800, 197816), (1252, 126400), (1264, 125200), (1280, 123635), (1565, 101120), (1580, 100160), (1600, 98908), (1975, 80128), (2504, 63200), (2528, 62600), (3130, 50560), (3160, 50080), (3200, 49454), (3950, 40064), (5008, 31600), (5056, 31300), (6260, 25280), (6320, 25040), (6400, 24727), (7825, 20224), (7900, 20032), (10016, 15800), (10112, 15650), (12520, 12640)]