318381440

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2251}}^1$

素因数の和:2300

約数の個数: 128

約数和(自身を含む): 868281120

約数和(自身を除く): 549899680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 160, 170, 208, 221, 260, 272, 320, 340, 416, 442, 520, 544, 640, 680, 832, 884, 1040, 1088, 1105, 1360, 1664, 1768, 2080, 2176, 2210, 2251, 2720, 3536, 4160, 4420, 4502, 5440, 7072, 8320, 8840, 9004, 10880, 11255, 14144, 17680, 18008, 22510, 28288, 29263, 35360, 36016, 38267, 45020, 58526, 70720, 72032, 76534, 90040, 117052, 141440, 144064, 146315, 153068, 180080, 191335, 234104, 288128, 292630, 306136, 360160, 382670, 468208, 497471, 585260, 612272, 720320, 765340, 936416, 994942, 1170520, 1224544, 1440640, 1530680, 1872832, 1989884, 2341040, 2449088, 2487355, 3061360, 3745664, 3979768, 4682080, 4898176, 4974710, 6122720, 7959536, 9364160, 9949420, 12245440, 15919072, 18728320, 19898840, 24490880, 31838144, 39797680, 63676288, 79595360, 159190720, 318381440]

約数ペア:

[(1, 318381440), (2, 159190720), (4, 79595360), (5, 63676288), (8, 39797680), (10, 31838144), (13, 24490880), (16, 19898840), (17, 18728320), (20, 15919072), (26, 12245440), (32, 9949420), (34, 9364160), (40, 7959536), (52, 6122720), (64, 4974710), (65, 4898176), (68, 4682080), (80, 3979768), (85, 3745664), (104, 3061360), (128, 2487355), (130, 2449088), (136, 2341040), (160, 1989884), (170, 1872832), (208, 1530680), (221, 1440640), (260, 1224544), (272, 1170520), (320, 994942), (340, 936416), (416, 765340), (442, 720320), (520, 612272), (544, 585260), (640, 497471), (680, 468208), (832, 382670), (884, 360160), (1040, 306136), (1088, 292630), (1105, 288128), (1360, 234104), (1664, 191335), (1768, 180080), (2080, 153068), (2176, 146315), (2210, 144064), (2251, 141440), (2720, 117052), (3536, 90040), (4160, 76534), (4420, 72032), (4502, 70720), (5440, 58526), (7072, 45020), (8320, 38267), (8840, 36016), (9004, 35360), (10880, 29263), (11255, 28288), (14144, 22510), (17680, 18008)]