20123100284

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{34303}}^1$

素因数の和:34435

約数の個数: 72

約数和(自身を含む): 42540115968

約数和(自身を除く): 22417015684

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 73, 82, 98, 146, 164, 196, 287, 292, 511, 574, 1022, 1148, 2009, 2044, 2993, 3577, 4018, 5986, 7154, 8036, 11972, 14308, 20951, 34303, 41902, 68606, 83804, 137212, 146657, 240121, 293314, 480242, 586628, 960484, 1406423, 1680847, 2504119, 2812846, 3361694, 5008238, 5625692, 6723388, 9844961, 10016476, 17528833, 19689922, 35057666, 39379844, 68914727, 70115332, 102668879, 122701831, 137829454, 205337758, 245403662, 275658908, 410675516, 490807324, 718682153, 1437364306, 2874728612, 5030775071, 10061550142, 20123100284]

約数ペア:

[(1, 20123100284), (2, 10061550142), (4, 5030775071), (7, 2874728612), (14, 1437364306), (28, 718682153), (41, 490807324), (49, 410675516), (73, 275658908), (82, 245403662), (98, 205337758), (146, 137829454), (164, 122701831), (196, 102668879), (287, 70115332), (292, 68914727), (511, 39379844), (574, 35057666), (1022, 19689922), (1148, 17528833), (2009, 10016476), (2044, 9844961), (2993, 6723388), (3577, 5625692), (4018, 5008238), (5986, 3361694), (7154, 2812846), (8036, 2504119), (11972, 1680847), (14308, 1406423), (20951, 960484), (34303, 586628), (41902, 480242), (68606, 293314), (83804, 240121), (137212, 146657)]