21377600

素因数分解:

$2^6\times 5^2\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:484

約数の個数: 84

約数和(自身を含む): 54425088

約数和(自身を除く): 33047488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 155, 160, 200, 248, 310, 320, 400, 431, 496, 620, 775, 800, 862, 992, 1240, 1550, 1600, 1724, 1984, 2155, 2480, 3100, 3448, 4310, 4960, 6200, 6896, 8620, 9920, 10775, 12400, 13361, 13792, 17240, 21550, 24800, 26722, 27584, 34480, 43100, 49600, 53444, 66805, 68960, 86200, 106888, 133610, 137920, 172400, 213776, 267220, 334025, 344800, 427552, 534440, 668050, 689600, 855104, 1068880, 1336100, 2137760, 2672200, 4275520, 5344400, 10688800, 21377600]

約数ペア:

[(1, 21377600), (2, 10688800), (4, 5344400), (5, 4275520), (8, 2672200), (10, 2137760), (16, 1336100), (20, 1068880), (25, 855104), (31, 689600), (32, 668050), (40, 534440), (50, 427552), (62, 344800), (64, 334025), (80, 267220), (100, 213776), (124, 172400), (155, 137920), (160, 133610), (200, 106888), (248, 86200), (310, 68960), (320, 66805), (400, 53444), (431, 49600), (496, 43100), (620, 34480), (775, 27584), (800, 26722), (862, 24800), (992, 21550), (1240, 17240), (1550, 13792), (1600, 13361), (1724, 12400), (1984, 10775), (2155, 9920), (2480, 8620), (3100, 6896), (3448, 6200), (4310, 4960)]