18664480

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:170

約数の個数: 96

約数和(自身を含む): 47029248

約数和(自身を除く): 28364768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 53, 62, 71, 80, 106, 124, 142, 155, 160, 212, 248, 265, 284, 310, 355, 424, 496, 530, 568, 620, 710, 848, 992, 1060, 1136, 1240, 1420, 1643, 1696, 2120, 2201, 2272, 2480, 2840, 3286, 3763, 4240, 4402, 4960, 5680, 6572, 7526, 8215, 8480, 8804, 11005, 11360, 13144, 15052, 16430, 17608, 18815, 22010, 26288, 30104, 32860, 35216, 37630, 44020, 52576, 60208, 65720, 70432, 75260, 88040, 116653, 120416, 131440, 150520, 176080, 233306, 262880, 301040, 352160, 466612, 583265, 602080, 933224, 1166530, 1866448, 2333060, 3732896, 4666120, 9332240, 18664480]

約数ペア:

[(1, 18664480), (2, 9332240), (4, 4666120), (5, 3732896), (8, 2333060), (10, 1866448), (16, 1166530), (20, 933224), (31, 602080), (32, 583265), (40, 466612), (53, 352160), (62, 301040), (71, 262880), (80, 233306), (106, 176080), (124, 150520), (142, 131440), (155, 120416), (160, 116653), (212, 88040), (248, 75260), (265, 70432), (284, 65720), (310, 60208), (355, 52576), (424, 44020), (496, 37630), (530, 35216), (568, 32860), (620, 30104), (710, 26288), (848, 22010), (992, 18815), (1060, 17608), (1136, 16430), (1240, 15052), (1420, 13144), (1643, 11360), (1696, 11005), (2120, 8804), (2201, 8480), (2272, 8215), (2480, 7526), (2840, 6572), (3286, 5680), (3763, 4960), (4240, 4402)]