20180815900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{6151}}^1$

素因数の和:6324

約数の個数: 144

約数和(自身を含む): 51690580480

約数和(自身を除く): 31509764580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 109, 140, 172, 175, 215, 218, 301, 350, 430, 436, 545, 602, 700, 763, 860, 1075, 1090, 1204, 1505, 1526, 2150, 2180, 2725, 3010, 3052, 3815, 4300, 4687, 5450, 6020, 6151, 7525, 7630, 9374, 10900, 12302, 15050, 15260, 18748, 19075, 23435, 24604, 30100, 30755, 32809, 38150, 43057, 46870, 61510, 65618, 76300, 86114, 93740, 117175, 123020, 131236, 153775, 164045, 172228, 215285, 234350, 264493, 307550, 328090, 430570, 468700, 528986, 615100, 656180, 670459, 820225, 861140, 1057972, 1076425, 1322465, 1340918, 1640450, 1851451, 2152850, 2644930, 2681836, 3280900, 3352295, 3702902, 4305700, 4693213, 5289860, 6612325, 6704590, 7405804, 9257255, 9386426, 13224650, 13409180, 16761475, 18514510, 18772852, 23466065, 26449300, 28829737, 33522950, 37029020, 46286275, 46932130, 57659474, 67045900, 92572550, 93864260, 115318948, 117330325, 144148685, 185145100, 201808159, 234660650, 288297370, 403616318, 469321300, 576594740, 720743425, 807232636, 1009040795, 1441486850, 2018081590, 2882973700, 4036163180, 5045203975, 10090407950, 20180815900]

約数ペア:

[(1, 20180815900), (2, 10090407950), (4, 5045203975), (5, 4036163180), (7, 2882973700), (10, 2018081590), (14, 1441486850), (20, 1009040795), (25, 807232636), (28, 720743425), (35, 576594740), (43, 469321300), (50, 403616318), (70, 288297370), (86, 234660650), (100, 201808159), (109, 185145100), (140, 144148685), (172, 117330325), (175, 115318948), (215, 93864260), (218, 92572550), (301, 67045900), (350, 57659474), (430, 46932130), (436, 46286275), (545, 37029020), (602, 33522950), (700, 28829737), (763, 26449300), (860, 23466065), (1075, 18772852), (1090, 18514510), (1204, 16761475), (1505, 13409180), (1526, 13224650), (2150, 9386426), (2180, 9257255), (2725, 7405804), (3010, 6704590), (3052, 6612325), (3815, 5289860), (4300, 4693213), (4687, 4305700), (5450, 3702902), (6020, 3352295), (6151, 3280900), (7525, 2681836), (7630, 2644930), (9374, 2152850), (10900, 1851451), (12302, 1640450), (15050, 1340918), (15260, 1322465), (18748, 1076425), (19075, 1057972), (23435, 861140), (24604, 820225), (30100, 670459), (30755, 656180), (32809, 615100), (38150, 528986), (43057, 468700), (46870, 430570), (61510, 328090), (65618, 307550), (76300, 264493), (86114, 234350), (93740, 215285), (117175, 172228), (123020, 164045), (131236, 153775)]