649086880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{997}}^1$

素因数の和:1338

約数の個数: 96

約数和(自身を含む): 1658364624

約数和(自身を除く): 1009277744

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 313, 416, 520, 626, 997, 1040, 1252, 1565, 1994, 2080, 2504, 3130, 3988, 4069, 4985, 5008, 6260, 7976, 8138, 9970, 10016, 12520, 12961, 15952, 16276, 19940, 20345, 25040, 25922, 31904, 32552, 39880, 40690, 50080, 51844, 64805, 65104, 79760, 81380, 103688, 129610, 130208, 159520, 162760, 207376, 259220, 312061, 325520, 414752, 518440, 624122, 651040, 1036880, 1248244, 1560305, 2073760, 2496488, 3120610, 4056793, 4992976, 6241220, 8113586, 9985952, 12482440, 16227172, 20283965, 24964880, 32454344, 40567930, 49929760, 64908688, 81135860, 129817376, 162271720, 324543440, 649086880]

約数ペア:

[(1, 649086880), (2, 324543440), (4, 162271720), (5, 129817376), (8, 81135860), (10, 64908688), (13, 49929760), (16, 40567930), (20, 32454344), (26, 24964880), (32, 20283965), (40, 16227172), (52, 12482440), (65, 9985952), (80, 8113586), (104, 6241220), (130, 4992976), (160, 4056793), (208, 3120610), (260, 2496488), (313, 2073760), (416, 1560305), (520, 1248244), (626, 1036880), (997, 651040), (1040, 624122), (1252, 518440), (1565, 414752), (1994, 325520), (2080, 312061), (2504, 259220), (3130, 207376), (3988, 162760), (4069, 159520), (4985, 130208), (5008, 129610), (6260, 103688), (7976, 81380), (8138, 79760), (9970, 65104), (10016, 64805), (12520, 51844), (12961, 50080), (15952, 40690), (16276, 39880), (19940, 32552), (20345, 31904), (25040, 25922)]