216640240

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{30427}}^1$

素因数の和:30529

約数の個数: 40

約数和(自身を含む): 509364720

約数和(自身を除く): 292724480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 30427, 60854, 121708, 152135, 243416, 304270, 486832, 608540, 1217080, 2434160, 2708003, 5416006, 10832012, 13540015, 21664024, 27080030, 43328048, 54160060, 108320120, 216640240]

約数ペア:

[(1, 216640240), (2, 108320120), (4, 54160060), (5, 43328048), (8, 27080030), (10, 21664024), (16, 13540015), (20, 10832012), (40, 5416006), (80, 2708003), (89, 2434160), (178, 1217080), (356, 608540), (445, 486832), (712, 304270), (890, 243416), (1424, 152135), (1780, 121708), (3560, 60854), (7120, 30427)]