78345680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4513}}^1$

素因数の和:4564

約数の個数: 80

約数和(自身を含む): 214938624

約数和(自身を除く): 136592944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 4513, 8680, 9026, 17360, 18052, 22565, 31591, 36104, 45130, 63182, 72208, 90260, 126364, 139903, 157955, 180520, 252728, 279806, 315910, 361040, 505456, 559612, 631820, 699515, 979321, 1119224, 1263640, 1399030, 1958642, 2238448, 2527280, 2798060, 3917284, 4896605, 5596120, 7834568, 9793210, 11192240, 15669136, 19586420, 39172840, 78345680]

約数ペア:

[(1, 78345680), (2, 39172840), (4, 19586420), (5, 15669136), (7, 11192240), (8, 9793210), (10, 7834568), (14, 5596120), (16, 4896605), (20, 3917284), (28, 2798060), (31, 2527280), (35, 2238448), (40, 1958642), (56, 1399030), (62, 1263640), (70, 1119224), (80, 979321), (112, 699515), (124, 631820), (140, 559612), (155, 505456), (217, 361040), (248, 315910), (280, 279806), (310, 252728), (434, 180520), (496, 157955), (560, 139903), (620, 126364), (868, 90260), (1085, 72208), (1240, 63182), (1736, 45130), (2170, 36104), (2480, 31591), (3472, 22565), (4340, 18052), (4513, 17360), (8680, 9026)]