1389777720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{3517}}^1$

素因数の和:3657

約数の個数: 128

約数和(自身を含む): 4331361600

約数和(自身を除く): 2941583880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 89, 111, 120, 148, 178, 185, 222, 267, 296, 356, 370, 444, 445, 534, 555, 712, 740, 888, 890, 1068, 1110, 1335, 1480, 1780, 2136, 2220, 2670, 3293, 3517, 3560, 4440, 5340, 6586, 7034, 9879, 10551, 10680, 13172, 14068, 16465, 17585, 19758, 21102, 26344, 28136, 32930, 35170, 39516, 42204, 49395, 52755, 65860, 70340, 79032, 84408, 98790, 105510, 130129, 131720, 140680, 197580, 211020, 260258, 313013, 390387, 395160, 422040, 520516, 626026, 650645, 780774, 939039, 1041032, 1252052, 1301290, 1561548, 1565065, 1878078, 1951935, 2504104, 2602580, 3123096, 3130130, 3756156, 3903870, 4695195, 5205160, 6260260, 7512312, 7807740, 9390390, 11581481, 12520520, 15615480, 18780780, 23162962, 34744443, 37561560, 46325924, 57907405, 69488886, 92651848, 115814810, 138977772, 173722215, 231629620, 277955544, 347444430, 463259240, 694888860, 1389777720]

約数ペア:

[(1, 1389777720), (2, 694888860), (3, 463259240), (4, 347444430), (5, 277955544), (6, 231629620), (8, 173722215), (10, 138977772), (12, 115814810), (15, 92651848), (20, 69488886), (24, 57907405), (30, 46325924), (37, 37561560), (40, 34744443), (60, 23162962), (74, 18780780), (89, 15615480), (111, 12520520), (120, 11581481), (148, 9390390), (178, 7807740), (185, 7512312), (222, 6260260), (267, 5205160), (296, 4695195), (356, 3903870), (370, 3756156), (444, 3130130), (445, 3123096), (534, 2602580), (555, 2504104), (712, 1951935), (740, 1878078), (888, 1565065), (890, 1561548), (1068, 1301290), (1110, 1252052), (1335, 1041032), (1480, 939039), (1780, 780774), (2136, 650645), (2220, 626026), (2670, 520516), (3293, 422040), (3517, 395160), (3560, 390387), (4440, 313013), (5340, 260258), (6586, 211020), (7034, 197580), (9879, 140680), (10551, 131720), (10680, 130129), (13172, 105510), (14068, 98790), (16465, 84408), (17585, 79032), (19758, 70340), (21102, 65860), (26344, 52755), (28136, 49395), (32930, 42204), (35170, 39516)]