138519340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 319334400

約数和(自身を除く): 180815060

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 47, 86, 92, 94, 115, 149, 172, 188, 215, 230, 235, 298, 430, 460, 470, 596, 745, 860, 940, 989, 1081, 1490, 1978, 2021, 2162, 2980, 3427, 3956, 4042, 4324, 4945, 5405, 6407, 6854, 7003, 8084, 9890, 10105, 10810, 12814, 13708, 14006, 17135, 19780, 20210, 21620, 25628, 28012, 32035, 34270, 35015, 40420, 46483, 64070, 68540, 70030, 92966, 128140, 140060, 147361, 161069, 185932, 232415, 294722, 301129, 322138, 464830, 589444, 602258, 644276, 736805, 805345, 929660, 1204516, 1473610, 1505645, 1610690, 2947220, 3011290, 3221380, 6022580, 6925967, 13851934, 27703868, 34629835, 69259670, 138519340]

約数ペア:

[(1, 138519340), (2, 69259670), (4, 34629835), (5, 27703868), (10, 13851934), (20, 6925967), (23, 6022580), (43, 3221380), (46, 3011290), (47, 2947220), (86, 1610690), (92, 1505645), (94, 1473610), (115, 1204516), (149, 929660), (172, 805345), (188, 736805), (215, 644276), (230, 602258), (235, 589444), (298, 464830), (430, 322138), (460, 301129), (470, 294722), (596, 232415), (745, 185932), (860, 161069), (940, 147361), (989, 140060), (1081, 128140), (1490, 92966), (1978, 70030), (2021, 68540), (2162, 64070), (2980, 46483), (3427, 40420), (3956, 35015), (4042, 34270), (4324, 32035), (4945, 28012), (5405, 25628), (6407, 21620), (6854, 20210), (7003, 19780), (8084, 17135), (9890, 14006), (10105, 13708), (10810, 12814)]