20140988

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 45386880

約数和(自身を除く): 25245892

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 131, 133, 238, 262, 266, 289, 323, 476, 524, 532, 578, 646, 917, 1156, 1292, 1834, 2023, 2227, 2261, 2489, 3668, 4046, 4454, 4522, 4978, 5491, 8092, 8908, 9044, 9956, 10982, 15589, 17423, 21964, 31178, 34846, 37859, 38437, 42313, 62356, 69692, 75718, 76874, 84626, 151436, 153748, 169252, 265013, 296191, 530026, 592382, 719321, 1060052, 1184764, 1438642, 2877284, 5035247, 10070494, 20140988]

約数ペア:

[(1, 20140988), (2, 10070494), (4, 5035247), (7, 2877284), (14, 1438642), (17, 1184764), (19, 1060052), (28, 719321), (34, 592382), (38, 530026), (68, 296191), (76, 265013), (119, 169252), (131, 153748), (133, 151436), (238, 84626), (262, 76874), (266, 75718), (289, 69692), (323, 62356), (476, 42313), (524, 38437), (532, 37859), (578, 34846), (646, 31178), (917, 21964), (1156, 17423), (1292, 15589), (1834, 10982), (2023, 9956), (2227, 9044), (2261, 8908), (2489, 8092), (3668, 5491), (4046, 4978), (4454, 4522)]