128001900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1427}}^1$

素因数の和:1480

約数の個数: 144

約数和(自身を含む): 416473344

約数和(自身を除く): 288471444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 25, 26, 30, 39, 46, 50, 52, 60, 65, 69, 75, 78, 92, 100, 115, 130, 138, 150, 156, 195, 230, 260, 276, 299, 300, 325, 345, 390, 460, 575, 598, 650, 690, 780, 897, 975, 1150, 1196, 1300, 1380, 1427, 1495, 1725, 1794, 1950, 2300, 2854, 2990, 3450, 3588, 3900, 4281, 4485, 5708, 5980, 6900, 7135, 7475, 8562, 8970, 14270, 14950, 17124, 17940, 18551, 21405, 22425, 28540, 29900, 32821, 35675, 37102, 42810, 44850, 55653, 65642, 71350, 74204, 85620, 89700, 92755, 98463, 107025, 111306, 131284, 142700, 164105, 185510, 196926, 214050, 222612, 278265, 328210, 371020, 393852, 426673, 428100, 463775, 492315, 556530, 656420, 820525, 853346, 927550, 984630, 1113060, 1280019, 1391325, 1641050, 1706692, 1855100, 1969260, 2133365, 2461575, 2560038, 2782650, 3282100, 4266730, 4923150, 5120076, 5565300, 6400095, 8533460, 9846300, 10666825, 12800190, 21333650, 25600380, 32000475, 42667300, 64000950, 128001900]

約数ペア:

[(1, 128001900), (2, 64000950), (3, 42667300), (4, 32000475), (5, 25600380), (6, 21333650), (10, 12800190), (12, 10666825), (13, 9846300), (15, 8533460), (20, 6400095), (23, 5565300), (25, 5120076), (26, 4923150), (30, 4266730), (39, 3282100), (46, 2782650), (50, 2560038), (52, 2461575), (60, 2133365), (65, 1969260), (69, 1855100), (75, 1706692), (78, 1641050), (92, 1391325), (100, 1280019), (115, 1113060), (130, 984630), (138, 927550), (150, 853346), (156, 820525), (195, 656420), (230, 556530), (260, 492315), (276, 463775), (299, 428100), (300, 426673), (325, 393852), (345, 371020), (390, 328210), (460, 278265), (575, 222612), (598, 214050), (650, 196926), (690, 185510), (780, 164105), (897, 142700), (975, 131284), (1150, 111306), (1196, 107025), (1300, 98463), (1380, 92755), (1427, 89700), (1495, 85620), (1725, 74204), (1794, 71350), (1950, 65642), (2300, 55653), (2854, 44850), (2990, 42810), (3450, 37102), (3588, 35675), (3900, 32821), (4281, 29900), (4485, 28540), (5708, 22425), (5980, 21405), (6900, 18551), (7135, 17940), (7475, 17124), (8562, 14950), (8970, 14270)]