128736840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:527

約数の個数: 128

約数和(自身を含む): 402652800

約数和(自身を除く): 273915960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 61, 86, 120, 122, 129, 172, 183, 215, 244, 258, 305, 344, 366, 409, 430, 488, 516, 610, 645, 732, 818, 860, 915, 1032, 1220, 1227, 1290, 1464, 1636, 1720, 1830, 2045, 2440, 2454, 2580, 2623, 3272, 3660, 4090, 4908, 5160, 5246, 6135, 7320, 7869, 8180, 9816, 10492, 12270, 13115, 15738, 16360, 17587, 20984, 24540, 24949, 26230, 31476, 35174, 39345, 49080, 49898, 52460, 52761, 62952, 70348, 74847, 78690, 87935, 99796, 104920, 105522, 124745, 140696, 149694, 157380, 175870, 199592, 211044, 249490, 263805, 299388, 314760, 351740, 374235, 422088, 498980, 527610, 598776, 703480, 748470, 997960, 1055220, 1072807, 1496940, 2110440, 2145614, 2993880, 3218421, 4291228, 5364035, 6436842, 8582456, 10728070, 12873684, 16092105, 21456140, 25747368, 32184210, 42912280, 64368420, 128736840]

約数ペア:

[(1, 128736840), (2, 64368420), (3, 42912280), (4, 32184210), (5, 25747368), (6, 21456140), (8, 16092105), (10, 12873684), (12, 10728070), (15, 8582456), (20, 6436842), (24, 5364035), (30, 4291228), (40, 3218421), (43, 2993880), (60, 2145614), (61, 2110440), (86, 1496940), (120, 1072807), (122, 1055220), (129, 997960), (172, 748470), (183, 703480), (215, 598776), (244, 527610), (258, 498980), (305, 422088), (344, 374235), (366, 351740), (409, 314760), (430, 299388), (488, 263805), (516, 249490), (610, 211044), (645, 199592), (732, 175870), (818, 157380), (860, 149694), (915, 140696), (1032, 124745), (1220, 105522), (1227, 104920), (1290, 99796), (1464, 87935), (1636, 78690), (1720, 74847), (1830, 70348), (2045, 62952), (2440, 52761), (2454, 52460), (2580, 49898), (2623, 49080), (3272, 39345), (3660, 35174), (4090, 31476), (4908, 26230), (5160, 24949), (5246, 24540), (6135, 20984), (7320, 17587), (7869, 16360), (8180, 15738), (9816, 13115), (10492, 12270)]