68900860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{167}}^1\times {\mathrm{421}}^1$

素因数の和:611

約数の個数: 72

約数和(自身を含む): 169725024

約数和(自身を除く): 100824164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 167, 196, 245, 334, 421, 490, 668, 835, 842, 980, 1169, 1670, 1684, 2105, 2338, 2947, 3340, 4210, 4676, 5845, 5894, 8183, 8420, 11690, 11788, 14735, 16366, 20629, 23380, 29470, 32732, 40915, 41258, 58940, 70307, 81830, 82516, 103145, 140614, 163660, 206290, 281228, 351535, 412580, 492149, 703070, 984298, 1406140, 1968596, 2460745, 3445043, 4921490, 6890086, 9842980, 13780172, 17225215, 34450430, 68900860]

約数ペア:

[(1, 68900860), (2, 34450430), (4, 17225215), (5, 13780172), (7, 9842980), (10, 6890086), (14, 4921490), (20, 3445043), (28, 2460745), (35, 1968596), (49, 1406140), (70, 984298), (98, 703070), (140, 492149), (167, 412580), (196, 351535), (245, 281228), (334, 206290), (421, 163660), (490, 140614), (668, 103145), (835, 82516), (842, 81830), (980, 70307), (1169, 58940), (1670, 41258), (1684, 40915), (2105, 32732), (2338, 29470), (2947, 23380), (3340, 20629), (4210, 16366), (4676, 14735), (5845, 11788), (5894, 11690), (8183, 8420)]