1521681000

素因数分解:

$2^3\times 3^1\times 5^3\times 7^1\times {\mathrm{72461}}^1$

素因数の和:72492

約数の個数: 128

約数和(自身を含む): 5425954560

約数和(自身を除く): 3904273560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 125, 140, 150, 168, 175, 200, 210, 250, 280, 300, 350, 375, 420, 500, 525, 600, 700, 750, 840, 875, 1000, 1050, 1400, 1500, 1750, 2100, 2625, 3000, 3500, 4200, 5250, 7000, 10500, 21000, 72461, 144922, 217383, 289844, 362305, 434766, 507227, 579688, 724610, 869532, 1014454, 1086915, 1449220, 1521681, 1739064, 1811525, 2028908, 2173830, 2536135, 2898440, 3043362, 3623050, 4057816, 4347660, 5072270, 5434575, 6086724, 7246100, 7608405, 8695320, 9057625, 10144540, 10869150, 12173448, 12680675, 14492200, 15216810, 18115250, 20289080, 21738300, 25361350, 27172875, 30433620, 36230500, 38042025, 43476600, 50722700, 54345750, 60867240, 63403375, 72461000, 76084050, 101445400, 108691500, 126806750, 152168100, 190210125, 217383000, 253613500, 304336200, 380420250, 507227000, 760840500, 1521681000]

約数ペア:

[(1, 1521681000), (2, 760840500), (3, 507227000), (4, 380420250), (5, 304336200), (6, 253613500), (7, 217383000), (8, 190210125), (10, 152168100), (12, 126806750), (14, 108691500), (15, 101445400), (20, 76084050), (21, 72461000), (24, 63403375), (25, 60867240), (28, 54345750), (30, 50722700), (35, 43476600), (40, 38042025), (42, 36230500), (50, 30433620), (56, 27172875), (60, 25361350), (70, 21738300), (75, 20289080), (84, 18115250), (100, 15216810), (105, 14492200), (120, 12680675), (125, 12173448), (140, 10869150), (150, 10144540), (168, 9057625), (175, 8695320), (200, 7608405), (210, 7246100), (250, 6086724), (280, 5434575), (300, 5072270), (350, 4347660), (375, 4057816), (420, 3623050), (500, 3043362), (525, 2898440), (600, 2536135), (700, 2173830), (750, 2028908), (840, 1811525), (875, 1739064), (1000, 1521681), (1050, 1449220), (1400, 1086915), (1500, 1014454), (1750, 869532), (2100, 724610), (2625, 579688), (3000, 507227), (3500, 434766), (4200, 362305), (5250, 289844), (7000, 217383), (10500, 144922), (21000, 72461)]