21842382080

素因数分解:

$2^8\times 5^1\times {\mathrm{239}}^1\times {\mathrm{71399}}^1$

素因数の和:71659

約数の個数: 72

約数和(自身を含む): 52538976000

約数和(自身を除く): 30696593920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 256, 320, 478, 640, 956, 1195, 1280, 1912, 2390, 3824, 4780, 7648, 9560, 15296, 19120, 30592, 38240, 61184, 71399, 76480, 142798, 152960, 285596, 305920, 356995, 571192, 713990, 1142384, 1427980, 2284768, 2855960, 4569536, 5711920, 9139072, 11423840, 17064361, 18278144, 22847680, 34128722, 45695360, 68257444, 85321805, 91390720, 136514888, 170643610, 273029776, 341287220, 546059552, 682574440, 1092119104, 1365148880, 2184238208, 2730297760, 4368476416, 5460595520, 10921191040, 21842382080]

約数ペア:

[(1, 21842382080), (2, 10921191040), (4, 5460595520), (5, 4368476416), (8, 2730297760), (10, 2184238208), (16, 1365148880), (20, 1092119104), (32, 682574440), (40, 546059552), (64, 341287220), (80, 273029776), (128, 170643610), (160, 136514888), (239, 91390720), (256, 85321805), (320, 68257444), (478, 45695360), (640, 34128722), (956, 22847680), (1195, 18278144), (1280, 17064361), (1912, 11423840), (2390, 9139072), (3824, 5711920), (4780, 4569536), (7648, 2855960), (9560, 2284768), (15296, 1427980), (19120, 1142384), (30592, 713990), (38240, 571192), (61184, 356995), (71399, 305920), (76480, 285596), (142798, 152960)]