918444280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1873}}^1$

素因数の和:1961

約数の個数: 128

約数和(自身を含む): 2380129920

約数和(自身を除く): 1461685640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 41, 46, 52, 65, 82, 92, 104, 115, 130, 164, 184, 205, 230, 260, 299, 328, 410, 460, 520, 533, 598, 820, 920, 943, 1066, 1196, 1495, 1640, 1873, 1886, 2132, 2392, 2665, 2990, 3746, 3772, 4264, 4715, 5330, 5980, 7492, 7544, 9365, 9430, 10660, 11960, 12259, 14984, 18730, 18860, 21320, 24349, 24518, 37460, 37720, 43079, 48698, 49036, 61295, 74920, 76793, 86158, 97396, 98072, 121745, 122590, 153586, 172316, 194792, 215395, 243490, 245180, 307172, 344632, 383965, 430790, 486980, 490360, 560027, 614344, 767930, 861580, 973960, 998309, 1120054, 1535860, 1723160, 1766239, 1996618, 2240108, 2800135, 3071720, 3532478, 3993236, 4480216, 4991545, 5600270, 7064956, 7986472, 8831195, 9983090, 11200540, 14129912, 17662390, 19966180, 22401080, 22961107, 35324780, 39932360, 45922214, 70649560, 91844428, 114805535, 183688856, 229611070, 459222140, 918444280]

約数ペア:

[(1, 918444280), (2, 459222140), (4, 229611070), (5, 183688856), (8, 114805535), (10, 91844428), (13, 70649560), (20, 45922214), (23, 39932360), (26, 35324780), (40, 22961107), (41, 22401080), (46, 19966180), (52, 17662390), (65, 14129912), (82, 11200540), (92, 9983090), (104, 8831195), (115, 7986472), (130, 7064956), (164, 5600270), (184, 4991545), (205, 4480216), (230, 3993236), (260, 3532478), (299, 3071720), (328, 2800135), (410, 2240108), (460, 1996618), (520, 1766239), (533, 1723160), (598, 1535860), (820, 1120054), (920, 998309), (943, 973960), (1066, 861580), (1196, 767930), (1495, 614344), (1640, 560027), (1873, 490360), (1886, 486980), (2132, 430790), (2392, 383965), (2665, 344632), (2990, 307172), (3746, 245180), (3772, 243490), (4264, 215395), (4715, 194792), (5330, 172316), (5980, 153586), (7492, 122590), (7544, 121745), (9365, 98072), (9430, 97396), (10660, 86158), (11960, 76793), (12259, 74920), (14984, 61295), (18730, 49036), (18860, 48698), (21320, 43079), (24349, 37720), (24518, 37460)]