21145331840

素因数分解:

$2^7\times 5^1\times {\mathrm{73}}^1\times {\mathrm{452597}}^1$

素因数の和:452689

約数の個数: 64

約数和(自身を含む): 51243145560

約数和(自身を除く): 30097813720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 146, 160, 292, 320, 365, 584, 640, 730, 1168, 1460, 2336, 2920, 4672, 5840, 9344, 11680, 23360, 46720, 452597, 905194, 1810388, 2262985, 3620776, 4525970, 7241552, 9051940, 14483104, 18103880, 28966208, 33039581, 36207760, 57932416, 66079162, 72415520, 132158324, 144831040, 165197905, 264316648, 289662080, 330395810, 528633296, 660791620, 1057266592, 1321583240, 2114533184, 2643166480, 4229066368, 5286332960, 10572665920, 21145331840]

約数ペア:

[(1, 21145331840), (2, 10572665920), (4, 5286332960), (5, 4229066368), (8, 2643166480), (10, 2114533184), (16, 1321583240), (20, 1057266592), (32, 660791620), (40, 528633296), (64, 330395810), (73, 289662080), (80, 264316648), (128, 165197905), (146, 144831040), (160, 132158324), (292, 72415520), (320, 66079162), (365, 57932416), (584, 36207760), (640, 33039581), (730, 28966208), (1168, 18103880), (1460, 14483104), (2336, 9051940), (2920, 7241552), (4672, 4525970), (5840, 3620776), (9344, 2262985), (11680, 1810388), (23360, 905194), (46720, 452597)]