19970760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1021}}^1$

素因数の和:1198

約数の個数: 64

約数和(自身を含む): 60338880

約数和(自身を除く): 40368120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 163, 326, 489, 652, 815, 978, 1021, 1304, 1630, 1956, 2042, 2445, 3063, 3260, 3912, 4084, 4890, 5105, 6126, 6520, 8168, 9780, 10210, 12252, 15315, 19560, 20420, 24504, 30630, 40840, 61260, 122520, 166423, 332846, 499269, 665692, 832115, 998538, 1331384, 1664230, 1997076, 2496345, 3328460, 3994152, 4992690, 6656920, 9985380, 19970760]

約数ペア:

[(1, 19970760), (2, 9985380), (3, 6656920), (4, 4992690), (5, 3994152), (6, 3328460), (8, 2496345), (10, 1997076), (12, 1664230), (15, 1331384), (20, 998538), (24, 832115), (30, 665692), (40, 499269), (60, 332846), (120, 166423), (163, 122520), (326, 61260), (489, 40840), (652, 30630), (815, 24504), (978, 20420), (1021, 19560), (1304, 15315), (1630, 12252), (1956, 10210), (2042, 9780), (2445, 8168), (3063, 6520), (3260, 6126), (3912, 5105), (4084, 4890)]