47806720

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1$

素因数の和:77

約数の個数: 144

約数和(自身を含む): 131347440

約数和(自身を除く): 83540720

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, 169, 170, 208, 221, 256, 260, 272, 320, 338, 340, 416, 442, 520, 544, 640, 676, 680, 832, 845, 884, 1040, 1088, 1105, 1280, 1352, 1360, 1664, 1690, 1768, 2080, 2176, 2197, 2210, 2704, 2720, 2873, 3328, 3380, 3536, 4160, 4352, 4394, 4420, 5408, 5440, 5746, 6760, 7072, 8320, 8788, 8840, 10816, 10880, 10985, 11492, 13520, 14144, 14365, 16640, 17576, 17680, 21632, 21760, 21970, 22984, 27040, 28288, 28730, 35152, 35360, 37349, 43264, 43940, 45968, 54080, 56576, 57460, 70304, 70720, 74698, 87880, 91936, 108160, 114920, 140608, 141440, 149396, 175760, 183872, 186745, 216320, 229840, 281216, 282880, 298792, 351520, 367744, 373490, 459680, 562432, 597584, 703040, 735488, 746980, 919360, 1195168, 1406080, 1493960, 1838720, 2390336, 2812160, 2987920, 3677440, 4780672, 5975840, 9561344, 11951680, 23903360, 47806720]

約数ペア:

[(1, 47806720), (2, 23903360), (4, 11951680), (5, 9561344), (8, 5975840), (10, 4780672), (13, 3677440), (16, 2987920), (17, 2812160), (20, 2390336), (26, 1838720), (32, 1493960), (34, 1406080), (40, 1195168), (52, 919360), (64, 746980), (65, 735488), (68, 703040), (80, 597584), (85, 562432), (104, 459680), (128, 373490), (130, 367744), (136, 351520), (160, 298792), (169, 282880), (170, 281216), (208, 229840), (221, 216320), (256, 186745), (260, 183872), (272, 175760), (320, 149396), (338, 141440), (340, 140608), (416, 114920), (442, 108160), (520, 91936), (544, 87880), (640, 74698), (676, 70720), (680, 70304), (832, 57460), (845, 56576), (884, 54080), (1040, 45968), (1088, 43940), (1105, 43264), (1280, 37349), (1352, 35360), (1360, 35152), (1664, 28730), (1690, 28288), (1768, 27040), (2080, 22984), (2176, 21970), (2197, 21760), (2210, 21632), (2704, 17680), (2720, 17576), (2873, 16640), (3328, 14365), (3380, 14144), (3536, 13520), (4160, 11492), (4352, 10985), (4394, 10880), (4420, 10816), (5408, 8840), (5440, 8788), (5746, 8320), (6760, 7072)]