1307625220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{28439}}^1$

素因数の和:28489

約数の個数: 72

約数和(自身を含む): 3177316800

約数和(自身を除く): 1869691580

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 484, 605, 836, 1045, 1210, 2090, 2299, 2420, 4180, 4598, 9196, 11495, 22990, 28439, 45980, 56878, 113756, 142195, 284390, 312829, 540341, 568780, 625658, 1080682, 1251316, 1564145, 2161364, 2701705, 3128290, 3441119, 5403410, 5943751, 6256580, 6882238, 10806820, 11887502, 13764476, 17205595, 23775004, 29718755, 34411190, 59437510, 65381261, 68822380, 118875020, 130762522, 261525044, 326906305, 653812610, 1307625220]

約数ペア:

[(1, 1307625220), (2, 653812610), (4, 326906305), (5, 261525044), (10, 130762522), (11, 118875020), (19, 68822380), (20, 65381261), (22, 59437510), (38, 34411190), (44, 29718755), (55, 23775004), (76, 17205595), (95, 13764476), (110, 11887502), (121, 10806820), (190, 6882238), (209, 6256580), (220, 5943751), (242, 5403410), (380, 3441119), (418, 3128290), (484, 2701705), (605, 2161364), (836, 1564145), (1045, 1251316), (1210, 1080682), (2090, 625658), (2299, 568780), (2420, 540341), (4180, 312829), (4598, 284390), (9196, 142195), (11495, 113756), (22990, 56878), (28439, 45980)]