18671300

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 44163840

約数和(自身を除く): 25492540

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 190, 310, 317, 380, 475, 589, 620, 634, 775, 950, 1178, 1268, 1550, 1585, 1900, 2356, 2945, 3100, 3170, 5890, 6023, 6340, 7925, 9827, 11780, 12046, 14725, 15850, 19654, 24092, 29450, 30115, 31700, 39308, 49135, 58900, 60230, 98270, 120460, 150575, 186713, 196540, 245675, 301150, 373426, 491350, 602300, 746852, 933565, 982700, 1867130, 3734260, 4667825, 9335650, 18671300]

約数ペア:

[(1, 18671300), (2, 9335650), (4, 4667825), (5, 3734260), (10, 1867130), (19, 982700), (20, 933565), (25, 746852), (31, 602300), (38, 491350), (50, 373426), (62, 301150), (76, 245675), (95, 196540), (100, 186713), (124, 150575), (155, 120460), (190, 98270), (310, 60230), (317, 58900), (380, 49135), (475, 39308), (589, 31700), (620, 30115), (634, 29450), (775, 24092), (950, 19654), (1178, 15850), (1268, 14725), (1550, 12046), (1585, 11780), (1900, 9827), (2356, 7925), (2945, 6340), (3100, 6023), (3170, 5890)]