664941760

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{42407}}^1$

素因数の和:42438

約数の個数: 84

約数和(自身を含む): 1841949072

約数和(自身を除く): 1177007312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 7840, 15680, 42407, 84814, 169628, 212035, 296849, 339256, 424070, 593698, 678512, 848140, 1187396, 1357024, 1484245, 1696280, 2077943, 2374792, 2714048, 2968490, 3392560, 4155886, 4749584, 5936980, 6785120, 8311772, 9499168, 10389715, 11873960, 13570240, 16623544, 18998336, 20779430, 23747920, 33247088, 41558860, 47495840, 66494176, 83117720, 94991680, 132988352, 166235440, 332470880, 664941760]

約数ペア:

[(1, 664941760), (2, 332470880), (4, 166235440), (5, 132988352), (7, 94991680), (8, 83117720), (10, 66494176), (14, 47495840), (16, 41558860), (20, 33247088), (28, 23747920), (32, 20779430), (35, 18998336), (40, 16623544), (49, 13570240), (56, 11873960), (64, 10389715), (70, 9499168), (80, 8311772), (98, 6785120), (112, 5936980), (140, 4749584), (160, 4155886), (196, 3392560), (224, 2968490), (245, 2714048), (280, 2374792), (320, 2077943), (392, 1696280), (448, 1484245), (490, 1357024), (560, 1187396), (784, 848140), (980, 678512), (1120, 593698), (1568, 424070), (1960, 339256), (2240, 296849), (3136, 212035), (3920, 169628), (7840, 84814), (15680, 42407)]