20129967040

素因数分解:

$2^6\times 5^1\times {\mathrm{151}}^1\times {\mathrm{257}}^1\times {\mathrm{1621}}^1$

素因数の和:2046

約数の個数: 112

約数和(自身を含む): 48469564224

約数和(自身を除く): 28339597184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 151, 160, 257, 302, 320, 514, 604, 755, 1028, 1208, 1285, 1510, 1621, 2056, 2416, 2570, 3020, 3242, 4112, 4832, 5140, 6040, 6484, 8105, 8224, 9664, 10280, 12080, 12968, 16210, 16448, 20560, 24160, 25936, 32420, 38807, 41120, 48320, 51872, 64840, 77614, 82240, 103744, 129680, 155228, 194035, 244771, 259360, 310456, 388070, 416597, 489542, 518720, 620912, 776140, 833194, 979084, 1223855, 1241824, 1552280, 1666388, 1958168, 2082985, 2447710, 2483648, 3104560, 3332776, 3916336, 4165970, 4895420, 6209120, 6665552, 7832672, 8331940, 9790840, 12418240, 13331104, 15665344, 16663880, 19581680, 26662208, 33327760, 39163360, 62906147, 66655520, 78326720, 125812294, 133311040, 251624588, 314530735, 503249176, 629061470, 1006498352, 1258122940, 2012996704, 2516245880, 4025993408, 5032491760, 10064983520, 20129967040]

約数ペア:

[(1, 20129967040), (2, 10064983520), (4, 5032491760), (5, 4025993408), (8, 2516245880), (10, 2012996704), (16, 1258122940), (20, 1006498352), (32, 629061470), (40, 503249176), (64, 314530735), (80, 251624588), (151, 133311040), (160, 125812294), (257, 78326720), (302, 66655520), (320, 62906147), (514, 39163360), (604, 33327760), (755, 26662208), (1028, 19581680), (1208, 16663880), (1285, 15665344), (1510, 13331104), (1621, 12418240), (2056, 9790840), (2416, 8331940), (2570, 7832672), (3020, 6665552), (3242, 6209120), (4112, 4895420), (4832, 4165970), (5140, 3916336), (6040, 3332776), (6484, 3104560), (8105, 2483648), (8224, 2447710), (9664, 2082985), (10280, 1958168), (12080, 1666388), (12968, 1552280), (16210, 1241824), (16448, 1223855), (20560, 979084), (24160, 833194), (25936, 776140), (32420, 620912), (38807, 518720), (41120, 489542), (48320, 416597), (51872, 388070), (64840, 310456), (77614, 259360), (82240, 244771), (103744, 194035), (129680, 155228)]