17920480

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3613}}^1$

素因数の和:3659

約数の個数: 48

約数和(自身を含む): 43714944

約数和(自身を除く): 25794464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 3613, 4960, 7226, 14452, 18065, 28904, 36130, 57808, 72260, 112003, 115616, 144520, 224006, 289040, 448012, 560015, 578080, 896024, 1120030, 1792048, 2240060, 3584096, 4480120, 8960240, 17920480]

約数ペア:

[(1, 17920480), (2, 8960240), (4, 4480120), (5, 3584096), (8, 2240060), (10, 1792048), (16, 1120030), (20, 896024), (31, 578080), (32, 560015), (40, 448012), (62, 289040), (80, 224006), (124, 144520), (155, 115616), (160, 112003), (248, 72260), (310, 57808), (496, 36130), (620, 28904), (992, 18065), (1240, 14452), (2480, 7226), (3613, 4960)]