131697920

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3319}}^1$

素因数の和:3371

約数の個数: 72

約数和(自身を含む): 325731840

約数和(自身を除く): 194033920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3319, 3968, 4960, 6638, 7936, 9920, 13276, 16595, 19840, 26552, 33190, 39680, 53104, 66380, 102889, 106208, 132760, 205778, 212416, 265520, 411556, 424832, 514445, 531040, 823112, 849664, 1028890, 1062080, 1646224, 2057780, 2124160, 3292448, 4115560, 4248320, 6584896, 8231120, 13169792, 16462240, 26339584, 32924480, 65848960, 131697920]

約数ペア:

[(1, 131697920), (2, 65848960), (4, 32924480), (5, 26339584), (8, 16462240), (10, 13169792), (16, 8231120), (20, 6584896), (31, 4248320), (32, 4115560), (40, 3292448), (62, 2124160), (64, 2057780), (80, 1646224), (124, 1062080), (128, 1028890), (155, 849664), (160, 823112), (248, 531040), (256, 514445), (310, 424832), (320, 411556), (496, 265520), (620, 212416), (640, 205778), (992, 132760), (1240, 106208), (1280, 102889), (1984, 66380), (2480, 53104), (3319, 39680), (3968, 33190), (4960, 26552), (6638, 19840), (7936, 16595), (9920, 13276)]