1242880240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{907}}^1\times {\mathrm{2447}}^1$

素因数の和:3374

約数の個数: 80

約数和(自身を含む): 3307502592

約数和(自身を除く): 2064622352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 907, 1814, 2447, 3628, 4535, 4894, 6349, 7256, 9070, 9788, 12235, 12698, 14512, 17129, 18140, 19576, 24470, 25396, 31745, 34258, 36280, 39152, 48940, 50792, 63490, 68516, 72560, 85645, 97880, 101584, 126980, 137032, 171290, 195760, 253960, 274064, 342580, 507920, 685160, 1370320, 2219429, 4438858, 8877716, 11097145, 15536003, 17755432, 22194290, 31072006, 35510864, 44388580, 62144012, 77680015, 88777160, 124288024, 155360030, 177554320, 248576048, 310720060, 621440120, 1242880240]

約数ペア:

[(1, 1242880240), (2, 621440120), (4, 310720060), (5, 248576048), (7, 177554320), (8, 155360030), (10, 124288024), (14, 88777160), (16, 77680015), (20, 62144012), (28, 44388580), (35, 35510864), (40, 31072006), (56, 22194290), (70, 17755432), (80, 15536003), (112, 11097145), (140, 8877716), (280, 4438858), (560, 2219429), (907, 1370320), (1814, 685160), (2447, 507920), (3628, 342580), (4535, 274064), (4894, 253960), (6349, 195760), (7256, 171290), (9070, 137032), (9788, 126980), (12235, 101584), (12698, 97880), (14512, 85645), (17129, 72560), (18140, 68516), (19576, 63490), (24470, 50792), (25396, 48940), (31745, 39152), (34258, 36280)]