1640832400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{215899}}^1$

素因数の和:215936

約数の個数: 60

約数和(自身を含む): 4149598000

約数和(自身を除く): 2508765600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 3800, 7600, 215899, 431798, 863596, 1079495, 1727192, 2158990, 3454384, 4102081, 4317980, 5397475, 8204162, 8635960, 10794950, 16408324, 17271920, 20510405, 21589900, 32816648, 41020810, 43179800, 65633296, 82041620, 86359600, 102552025, 164083240, 205104050, 328166480, 410208100, 820416200, 1640832400]

約数ペア:

[(1, 1640832400), (2, 820416200), (4, 410208100), (5, 328166480), (8, 205104050), (10, 164083240), (16, 102552025), (19, 86359600), (20, 82041620), (25, 65633296), (38, 43179800), (40, 41020810), (50, 32816648), (76, 21589900), (80, 20510405), (95, 17271920), (100, 16408324), (152, 10794950), (190, 8635960), (200, 8204162), (304, 5397475), (380, 4317980), (400, 4102081), (475, 3454384), (760, 2158990), (950, 1727192), (1520, 1079495), (1900, 863596), (3800, 431798), (7600, 215899)]