72121840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4441}}^1$

素因数の和:4490

約数の個数: 80

約数和(自身を含む): 198290880

約数和(自身を除く): 126169040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1624, 2030, 2320, 3248, 4060, 4441, 8120, 8882, 16240, 17764, 22205, 31087, 35528, 44410, 62174, 71056, 88820, 124348, 128789, 155435, 177640, 248696, 257578, 310870, 355280, 497392, 515156, 621740, 643945, 901523, 1030312, 1243480, 1287890, 1803046, 2060624, 2486960, 2575780, 3606092, 4507615, 5151560, 7212184, 9015230, 10303120, 14424368, 18030460, 36060920, 72121840]

約数ペア:

[(1, 72121840), (2, 36060920), (4, 18030460), (5, 14424368), (7, 10303120), (8, 9015230), (10, 7212184), (14, 5151560), (16, 4507615), (20, 3606092), (28, 2575780), (29, 2486960), (35, 2060624), (40, 1803046), (56, 1287890), (58, 1243480), (70, 1030312), (80, 901523), (112, 643945), (116, 621740), (140, 515156), (145, 497392), (203, 355280), (232, 310870), (280, 257578), (290, 248696), (406, 177640), (464, 155435), (560, 128789), (580, 124348), (812, 88820), (1015, 71056), (1160, 62174), (1624, 44410), (2030, 35528), (2320, 31087), (3248, 22205), (4060, 17764), (4441, 16240), (8120, 8882)]