19878960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{733}}^1$

素因数の和:862

約数の個数: 80

約数和(自身を含む): 62254944

約数和(自身を除く): 42375984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 113, 120, 226, 240, 339, 452, 565, 678, 733, 904, 1130, 1356, 1466, 1695, 1808, 2199, 2260, 2712, 2932, 3390, 3665, 4398, 4520, 5424, 5864, 6780, 7330, 8796, 9040, 10995, 11728, 13560, 14660, 17592, 21990, 27120, 29320, 35184, 43980, 58640, 82829, 87960, 165658, 175920, 248487, 331316, 414145, 496974, 662632, 828290, 993948, 1242435, 1325264, 1656580, 1987896, 2484870, 3313160, 3975792, 4969740, 6626320, 9939480, 19878960]

約数ペア:

[(1, 19878960), (2, 9939480), (3, 6626320), (4, 4969740), (5, 3975792), (6, 3313160), (8, 2484870), (10, 1987896), (12, 1656580), (15, 1325264), (16, 1242435), (20, 993948), (24, 828290), (30, 662632), (40, 496974), (48, 414145), (60, 331316), (80, 248487), (113, 175920), (120, 165658), (226, 87960), (240, 82829), (339, 58640), (452, 43980), (565, 35184), (678, 29320), (733, 27120), (904, 21990), (1130, 17592), (1356, 14660), (1466, 13560), (1695, 11728), (1808, 10995), (2199, 9040), (2260, 8796), (2712, 7330), (2932, 6780), (3390, 5864), (3665, 5424), (4398, 4520)]