19880460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5813}}^1$

素因数の和:5847

約数の個数: 72

約数和(自身を含む): 63488880

約数和(自身を除く): 43608420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 5813, 11626, 17439, 23252, 29065, 34878, 52317, 58130, 69756, 87195, 104634, 110447, 116260, 174390, 209268, 220894, 261585, 331341, 348780, 441788, 523170, 552235, 662682, 994023, 1046340, 1104470, 1325364, 1656705, 1988046, 2208940, 3313410, 3976092, 4970115, 6626820, 9940230, 19880460]

約数ペア:

[(1, 19880460), (2, 9940230), (3, 6626820), (4, 4970115), (5, 3976092), (6, 3313410), (9, 2208940), (10, 1988046), (12, 1656705), (15, 1325364), (18, 1104470), (19, 1046340), (20, 994023), (30, 662682), (36, 552235), (38, 523170), (45, 441788), (57, 348780), (60, 331341), (76, 261585), (90, 220894), (95, 209268), (114, 174390), (171, 116260), (180, 110447), (190, 104634), (228, 87195), (285, 69756), (342, 58130), (380, 52317), (570, 34878), (684, 29065), (855, 23252), (1140, 17439), (1710, 11626), (3420, 5813)]