1644262020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{128659}}^1$

素因数の和:128745

約数の個数: 72

約数和(自身を含む): 5057881920

約数和(自身を除く): 3413619900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 128659, 257318, 385977, 514636, 643295, 771954, 1157931, 1286590, 1543908, 1929885, 2315862, 2573180, 3859770, 4631724, 5789655, 7719540, 9134789, 11579310, 18269578, 23158620, 27404367, 36539156, 45673945, 54808734, 82213101, 91347890, 109617468, 137021835, 164426202, 182695780, 274043670, 328852404, 411065505, 548087340, 822131010, 1644262020]

約数ペア:

[(1, 1644262020), (2, 822131010), (3, 548087340), (4, 411065505), (5, 328852404), (6, 274043670), (9, 182695780), (10, 164426202), (12, 137021835), (15, 109617468), (18, 91347890), (20, 82213101), (30, 54808734), (36, 45673945), (45, 36539156), (60, 27404367), (71, 23158620), (90, 18269578), (142, 11579310), (180, 9134789), (213, 7719540), (284, 5789655), (355, 4631724), (426, 3859770), (639, 2573180), (710, 2315862), (852, 1929885), (1065, 1543908), (1278, 1286590), (1420, 1157931), (2130, 771954), (2556, 643295), (3195, 514636), (4260, 385977), (6390, 257318), (12780, 128659)]