18984966804

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{278879}}^1$

素因数の和:278981

約数の個数: 72

約数和(自身を含む): 50350110720

約数和(自身を除く): 31365143916

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 61, 62, 93, 122, 124, 183, 186, 244, 279, 366, 372, 549, 558, 732, 1098, 1116, 1891, 2196, 3782, 5673, 7564, 11346, 17019, 22692, 34038, 68076, 278879, 557758, 836637, 1115516, 1673274, 2509911, 3346548, 5019822, 8645249, 10039644, 17011619, 17290498, 25935747, 34023238, 34580996, 51034857, 51871494, 68046476, 77807241, 102069714, 103742988, 153104571, 155614482, 204139428, 306209142, 311228964, 527360189, 612418284, 1054720378, 1582080567, 2109440756, 3164161134, 4746241701, 6328322268, 9492483402, 18984966804]

約数ペア:

[(1, 18984966804), (2, 9492483402), (3, 6328322268), (4, 4746241701), (6, 3164161134), (9, 2109440756), (12, 1582080567), (18, 1054720378), (31, 612418284), (36, 527360189), (61, 311228964), (62, 306209142), (93, 204139428), (122, 155614482), (124, 153104571), (183, 103742988), (186, 102069714), (244, 77807241), (279, 68046476), (366, 51871494), (372, 51034857), (549, 34580996), (558, 34023238), (732, 25935747), (1098, 17290498), (1116, 17011619), (1891, 10039644), (2196, 8645249), (3782, 5019822), (5673, 3346548), (7564, 2509911), (11346, 1673274), (17019, 1115516), (22692, 836637), (34038, 557758), (68076, 278879)]