21620280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1489}}^1$

素因数の和:1525

約数の個数: 96

約数和(自身を含む): 71341200

約数和(自身を除く): 49720920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 121, 132, 165, 220, 242, 264, 330, 363, 440, 484, 605, 660, 726, 968, 1210, 1320, 1452, 1489, 1815, 2420, 2904, 2978, 3630, 4467, 4840, 5956, 7260, 7445, 8934, 11912, 14520, 14890, 16379, 17868, 22335, 29780, 32758, 35736, 44670, 49137, 59560, 65516, 81895, 89340, 98274, 131032, 163790, 178680, 180169, 196548, 245685, 327580, 360338, 393096, 491370, 540507, 655160, 720676, 900845, 982740, 1081014, 1441352, 1801690, 1965480, 2162028, 2702535, 3603380, 4324056, 5405070, 7206760, 10810140, 21620280]

約数ペア:

[(1, 21620280), (2, 10810140), (3, 7206760), (4, 5405070), (5, 4324056), (6, 3603380), (8, 2702535), (10, 2162028), (11, 1965480), (12, 1801690), (15, 1441352), (20, 1081014), (22, 982740), (24, 900845), (30, 720676), (33, 655160), (40, 540507), (44, 491370), (55, 393096), (60, 360338), (66, 327580), (88, 245685), (110, 196548), (120, 180169), (121, 178680), (132, 163790), (165, 131032), (220, 98274), (242, 89340), (264, 81895), (330, 65516), (363, 59560), (440, 49137), (484, 44670), (605, 35736), (660, 32758), (726, 29780), (968, 22335), (1210, 17868), (1320, 16379), (1452, 14890), (1489, 14520), (1815, 11912), (2420, 8934), (2904, 7445), (2978, 7260), (3630, 5956), (4467, 4840)]