19297960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{719}}^1$

素因数の和:802

約数の個数: 64

約数和(自身を含む): 48211200

約数和(自身を除く): 28913240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 719, 1220, 1342, 1438, 2440, 2684, 2876, 3355, 3595, 5368, 5752, 6710, 7190, 7909, 13420, 14380, 15818, 26840, 28760, 31636, 39545, 43859, 63272, 79090, 87718, 158180, 175436, 219295, 316360, 350872, 438590, 482449, 877180, 964898, 1754360, 1929796, 2412245, 3859592, 4824490, 9648980, 19297960]

約数ペア:

[(1, 19297960), (2, 9648980), (4, 4824490), (5, 3859592), (8, 2412245), (10, 1929796), (11, 1754360), (20, 964898), (22, 877180), (40, 482449), (44, 438590), (55, 350872), (61, 316360), (88, 219295), (110, 175436), (122, 158180), (220, 87718), (244, 79090), (305, 63272), (440, 43859), (488, 39545), (610, 31636), (671, 28760), (719, 26840), (1220, 15818), (1342, 14380), (1438, 13420), (2440, 7909), (2684, 7190), (2876, 6710), (3355, 5752), (3595, 5368)]