20105288

素因数分解:

$2^3\times 7^3\times {\mathrm{17}}^1\times {\mathrm{431}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 26550712

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 343, 392, 431, 476, 686, 833, 862, 952, 1372, 1666, 1724, 2744, 3017, 3332, 3448, 5831, 6034, 6664, 7327, 11662, 12068, 14654, 21119, 23324, 24136, 29308, 42238, 46648, 51289, 58616, 84476, 102578, 147833, 168952, 205156, 295666, 359023, 410312, 591332, 718046, 1182664, 1436092, 2513161, 2872184, 5026322, 10052644, 20105288]

約数ペア:

[(1, 20105288), (2, 10052644), (4, 5026322), (7, 2872184), (8, 2513161), (14, 1436092), (17, 1182664), (28, 718046), (34, 591332), (49, 410312), (56, 359023), (68, 295666), (98, 205156), (119, 168952), (136, 147833), (196, 102578), (238, 84476), (343, 58616), (392, 51289), (431, 46648), (476, 42238), (686, 29308), (833, 24136), (862, 23324), (952, 21119), (1372, 14654), (1666, 12068), (1724, 11662), (2744, 7327), (3017, 6664), (3332, 6034), (3448, 5831)]