20244420920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{371321}}^1$

素因数の和:371408

約数の個数: 64

約数和(自身を含む): 48123331200

約数和(自身を除く): 27878910280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 47, 58, 94, 116, 145, 188, 232, 235, 290, 376, 470, 580, 940, 1160, 1363, 1880, 2726, 5452, 6815, 10904, 13630, 27260, 54520, 371321, 742642, 1485284, 1856605, 2970568, 3713210, 7426420, 10768309, 14852840, 17452087, 21536618, 34904174, 43073236, 53841545, 69808348, 86146472, 87260435, 107683090, 139616696, 174520870, 215366180, 349041740, 430732360, 506110523, 698083480, 1012221046, 2024442092, 2530552615, 4048884184, 5061105230, 10122210460, 20244420920]

約数ペア:

[(1, 20244420920), (2, 10122210460), (4, 5061105230), (5, 4048884184), (8, 2530552615), (10, 2024442092), (20, 1012221046), (29, 698083480), (40, 506110523), (47, 430732360), (58, 349041740), (94, 215366180), (116, 174520870), (145, 139616696), (188, 107683090), (232, 87260435), (235, 86146472), (290, 69808348), (376, 53841545), (470, 43073236), (580, 34904174), (940, 21536618), (1160, 17452087), (1363, 14852840), (1880, 10768309), (2726, 7426420), (5452, 3713210), (6815, 2970568), (10904, 1856605), (13630, 1485284), (27260, 742642), (54520, 371321)]