21872800

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1439}}^1$

素因数の和:1478

約数の個数: 72

約数和(自身を含む): 56246400

約数和(自身を除く): 34373600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 76, 80, 95, 100, 152, 160, 190, 200, 304, 380, 400, 475, 608, 760, 800, 950, 1439, 1520, 1900, 2878, 3040, 3800, 5756, 7195, 7600, 11512, 14390, 15200, 23024, 27341, 28780, 35975, 46048, 54682, 57560, 71950, 109364, 115120, 136705, 143900, 218728, 230240, 273410, 287800, 437456, 546820, 575600, 683525, 874912, 1093640, 1151200, 1367050, 2187280, 2734100, 4374560, 5468200, 10936400, 21872800]

約数ペア:

[(1, 21872800), (2, 10936400), (4, 5468200), (5, 4374560), (8, 2734100), (10, 2187280), (16, 1367050), (19, 1151200), (20, 1093640), (25, 874912), (32, 683525), (38, 575600), (40, 546820), (50, 437456), (76, 287800), (80, 273410), (95, 230240), (100, 218728), (152, 143900), (160, 136705), (190, 115120), (200, 109364), (304, 71950), (380, 57560), (400, 54682), (475, 46048), (608, 35975), (760, 28780), (800, 27341), (950, 23024), (1439, 15200), (1520, 14390), (1900, 11512), (2878, 7600), (3040, 7195), (3800, 5756)]