1649440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1$

素因数の和:102

約数の個数: 72

約数和(自身を含む): 4288788

約数和(自身を除く): 2639348

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 65, 80, 104, 122, 130, 160, 169, 208, 244, 260, 305, 338, 416, 488, 520, 610, 676, 793, 845, 976, 1040, 1220, 1352, 1586, 1690, 1952, 2080, 2440, 2704, 3172, 3380, 3965, 4880, 5408, 6344, 6760, 7930, 9760, 10309, 12688, 13520, 15860, 20618, 25376, 27040, 31720, 41236, 51545, 63440, 82472, 103090, 126880, 164944, 206180, 329888, 412360, 824720, 1649440]

約数ペア:

[(1, 1649440), (2, 824720), (4, 412360), (5, 329888), (8, 206180), (10, 164944), (13, 126880), (16, 103090), (20, 82472), (26, 63440), (32, 51545), (40, 41236), (52, 31720), (61, 27040), (65, 25376), (80, 20618), (104, 15860), (122, 13520), (130, 12688), (160, 10309), (169, 9760), (208, 7930), (244, 6760), (260, 6344), (305, 5408), (338, 4880), (416, 3965), (488, 3380), (520, 3172), (610, 2704), (676, 2440), (793, 2080), (845, 1952), (976, 1690), (1040, 1586), (1220, 1352)]