20174778

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1044

約数の個数: 64

約数和(自身を含む): 49996800

約数和(自身を除く): 29822022

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 29, 39, 54, 58, 78, 87, 117, 174, 234, 261, 351, 377, 522, 702, 754, 783, 991, 1131, 1566, 1982, 2262, 2973, 3393, 5946, 6786, 8919, 10179, 12883, 17838, 20358, 25766, 26757, 28739, 38649, 53514, 57478, 77298, 86217, 115947, 172434, 231894, 258651, 347841, 373607, 517302, 695682, 747214, 775953, 1120821, 1551906, 2241642, 3362463, 6724926, 10087389, 20174778]

約数ペア:

[(1, 20174778), (2, 10087389), (3, 6724926), (6, 3362463), (9, 2241642), (13, 1551906), (18, 1120821), (26, 775953), (27, 747214), (29, 695682), (39, 517302), (54, 373607), (58, 347841), (78, 258651), (87, 231894), (117, 172434), (174, 115947), (234, 86217), (261, 77298), (351, 57478), (377, 53514), (522, 38649), (702, 28739), (754, 26757), (783, 25766), (991, 20358), (1131, 17838), (1566, 12883), (1982, 10179), (2262, 8919), (2973, 6786), (3393, 5946)]