20153986240

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{643}}^1\times {\mathrm{2389}}^1$

素因数の和:3090

約数の個数: 112

約数和(自身を含む): 49259276640

約数和(自身を除く): 29105290400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 643, 656, 820, 1286, 1312, 1640, 2389, 2572, 2624, 3215, 3280, 4778, 5144, 6430, 6560, 9556, 10288, 11945, 12860, 13120, 19112, 20576, 23890, 25720, 26363, 38224, 41152, 47780, 51440, 52726, 76448, 95560, 97949, 102880, 105452, 131815, 152896, 191120, 195898, 205760, 210904, 263630, 382240, 391796, 421808, 489745, 527260, 764480, 783592, 843616, 979490, 1054520, 1536127, 1567184, 1687232, 1958980, 2109040, 3072254, 3134368, 3917960, 4218080, 6144508, 6268736, 7680635, 7835920, 8436160, 12289016, 15361270, 15671840, 24578032, 30722540, 31343680, 49156064, 61445080, 62981207, 98312128, 122890160, 125962414, 245780320, 251924828, 314906035, 491560640, 503849656, 629812070, 1007699312, 1259624140, 2015398624, 2519248280, 4030797248, 5038496560, 10076993120, 20153986240]

約数ペア:

[(1, 20153986240), (2, 10076993120), (4, 5038496560), (5, 4030797248), (8, 2519248280), (10, 2015398624), (16, 1259624140), (20, 1007699312), (32, 629812070), (40, 503849656), (41, 491560640), (64, 314906035), (80, 251924828), (82, 245780320), (160, 125962414), (164, 122890160), (205, 98312128), (320, 62981207), (328, 61445080), (410, 49156064), (643, 31343680), (656, 30722540), (820, 24578032), (1286, 15671840), (1312, 15361270), (1640, 12289016), (2389, 8436160), (2572, 7835920), (2624, 7680635), (3215, 6268736), (3280, 6144508), (4778, 4218080), (5144, 3917960), (6430, 3134368), (6560, 3072254), (9556, 2109040), (10288, 1958980), (11945, 1687232), (12860, 1567184), (13120, 1536127), (19112, 1054520), (20576, 979490), (23890, 843616), (25720, 783592), (26363, 764480), (38224, 527260), (41152, 489745), (47780, 421808), (51440, 391796), (52726, 382240), (76448, 263630), (95560, 210904), (97949, 205760), (102880, 195898), (105452, 191120), (131815, 152896)]