19821000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{6607}}^1$

素因数の和:6631

約数の個数: 64

約数和(自身を含む): 61850880

約数和(自身を除く): 42029880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 750, 1000, 1500, 3000, 6607, 13214, 19821, 26428, 33035, 39642, 52856, 66070, 79284, 99105, 132140, 158568, 165175, 198210, 264280, 330350, 396420, 495525, 660700, 792840, 825875, 991050, 1321400, 1651750, 1982100, 2477625, 3303500, 3964200, 4955250, 6607000, 9910500, 19821000]

約数ペア:

[(1, 19821000), (2, 9910500), (3, 6607000), (4, 4955250), (5, 3964200), (6, 3303500), (8, 2477625), (10, 1982100), (12, 1651750), (15, 1321400), (20, 991050), (24, 825875), (25, 792840), (30, 660700), (40, 495525), (50, 396420), (60, 330350), (75, 264280), (100, 198210), (120, 165175), (125, 158568), (150, 132140), (200, 99105), (250, 79284), (300, 66070), (375, 52856), (500, 39642), (600, 33035), (750, 26428), (1000, 19821), (1500, 13214), (3000, 6607)]