78966140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 189604800

約数和(自身を除く): 110638660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 89, 109, 110, 148, 178, 185, 218, 220, 356, 370, 407, 436, 445, 545, 740, 814, 890, 979, 1090, 1199, 1628, 1780, 1958, 2035, 2180, 2398, 3293, 3916, 4033, 4070, 4796, 4895, 5995, 6586, 8066, 8140, 9701, 9790, 11990, 13172, 16132, 16465, 19402, 19580, 20165, 23980, 32930, 36223, 38804, 40330, 44363, 48505, 65860, 72446, 80660, 88726, 97010, 106711, 144892, 177452, 181115, 194020, 213422, 221815, 358937, 362230, 426844, 443630, 533555, 717874, 724460, 887260, 1067110, 1435748, 1794685, 2134220, 3589370, 3948307, 7178740, 7896614, 15793228, 19741535, 39483070, 78966140]

約数ペア:

[(1, 78966140), (2, 39483070), (4, 19741535), (5, 15793228), (10, 7896614), (11, 7178740), (20, 3948307), (22, 3589370), (37, 2134220), (44, 1794685), (55, 1435748), (74, 1067110), (89, 887260), (109, 724460), (110, 717874), (148, 533555), (178, 443630), (185, 426844), (218, 362230), (220, 358937), (356, 221815), (370, 213422), (407, 194020), (436, 181115), (445, 177452), (545, 144892), (740, 106711), (814, 97010), (890, 88726), (979, 80660), (1090, 72446), (1199, 65860), (1628, 48505), (1780, 44363), (1958, 40330), (2035, 38804), (2180, 36223), (2398, 32930), (3293, 23980), (3916, 20165), (4033, 19580), (4070, 19402), (4796, 16465), (4895, 16132), (5995, 13172), (6586, 11990), (8066, 9790), (8140, 9701)]