64826240

素因数分解:

$2^7\times 5^1\times {\mathrm{199}}^1\times {\mathrm{509}}^1$

素因数の和:727

約数の個数: 64

約数和(自身を含む): 156060000

約数和(自身を除く): 91233760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 320, 398, 509, 640, 796, 995, 1018, 1592, 1990, 2036, 2545, 3184, 3980, 4072, 5090, 6368, 7960, 8144, 10180, 12736, 15920, 16288, 20360, 25472, 31840, 32576, 40720, 63680, 65152, 81440, 101291, 127360, 162880, 202582, 325760, 405164, 506455, 810328, 1012910, 1620656, 2025820, 3241312, 4051640, 6482624, 8103280, 12965248, 16206560, 32413120, 64826240]

約数ペア:

[(1, 64826240), (2, 32413120), (4, 16206560), (5, 12965248), (8, 8103280), (10, 6482624), (16, 4051640), (20, 3241312), (32, 2025820), (40, 1620656), (64, 1012910), (80, 810328), (128, 506455), (160, 405164), (199, 325760), (320, 202582), (398, 162880), (509, 127360), (640, 101291), (796, 81440), (995, 65152), (1018, 63680), (1592, 40720), (1990, 32576), (2036, 31840), (2545, 25472), (3184, 20360), (3980, 16288), (4072, 15920), (5090, 12736), (6368, 10180), (7960, 8144)]