20003461760

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1008239}}^1$

素因数の和:1008289

約数の個数: 64

約数和(自身を含む): 49363430400

約数和(自身を除く): 29359968640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 19840, 1008239, 2016478, 4032956, 5041195, 8065912, 10082390, 16131824, 20164780, 31255409, 32263648, 40329560, 62510818, 64527296, 80659120, 125021636, 129054592, 156277045, 161318240, 250043272, 312554090, 322636480, 500086544, 625108180, 645272960, 1000173088, 1250216360, 2000346176, 2500432720, 4000692352, 5000865440, 10001730880, 20003461760]

約数ペア:

[(1, 20003461760), (2, 10001730880), (4, 5000865440), (5, 4000692352), (8, 2500432720), (10, 2000346176), (16, 1250216360), (20, 1000173088), (31, 645272960), (32, 625108180), (40, 500086544), (62, 322636480), (64, 312554090), (80, 250043272), (124, 161318240), (128, 156277045), (155, 129054592), (160, 125021636), (248, 80659120), (310, 64527296), (320, 62510818), (496, 40329560), (620, 32263648), (640, 31255409), (992, 20164780), (1240, 16131824), (1984, 10082390), (2480, 8065912), (3968, 5041195), (4960, 4032956), (9920, 2016478), (19840, 1008239)]