40006720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 112

約数和(自身を含む): 104973120

約数和(自身を除く): 64966400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 59, 64, 65, 80, 104, 118, 130, 160, 163, 208, 236, 260, 295, 320, 326, 416, 472, 520, 590, 652, 767, 815, 832, 944, 1040, 1180, 1304, 1534, 1630, 1888, 2080, 2119, 2360, 2608, 3068, 3260, 3776, 3835, 4160, 4238, 4720, 5216, 6136, 6520, 7670, 8476, 9440, 9617, 10432, 10595, 12272, 13040, 15340, 16952, 18880, 19234, 21190, 24544, 26080, 30680, 33904, 38468, 42380, 48085, 49088, 52160, 61360, 67808, 76936, 84760, 96170, 122720, 125021, 135616, 153872, 169520, 192340, 245440, 250042, 307744, 339040, 384680, 500084, 615488, 625105, 678080, 769360, 1000168, 1250210, 1538720, 2000336, 2500420, 3077440, 4000672, 5000840, 8001344, 10001680, 20003360, 40006720]

約数ペア:

[(1, 40006720), (2, 20003360), (4, 10001680), (5, 8001344), (8, 5000840), (10, 4000672), (13, 3077440), (16, 2500420), (20, 2000336), (26, 1538720), (32, 1250210), (40, 1000168), (52, 769360), (59, 678080), (64, 625105), (65, 615488), (80, 500084), (104, 384680), (118, 339040), (130, 307744), (160, 250042), (163, 245440), (208, 192340), (236, 169520), (260, 153872), (295, 135616), (320, 125021), (326, 122720), (416, 96170), (472, 84760), (520, 76936), (590, 67808), (652, 61360), (767, 52160), (815, 49088), (832, 48085), (944, 42380), (1040, 38468), (1180, 33904), (1304, 30680), (1534, 26080), (1630, 24544), (1888, 21190), (2080, 19234), (2119, 18880), (2360, 16952), (2608, 15340), (3068, 13040), (3260, 12272), (3776, 10595), (3835, 10432), (4160, 9617), (4238, 9440), (4720, 8476), (5216, 7670), (6136, 6520)]