81857040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20063}}^1$

素因数の和:20096

約数の個数: 80

約数和(自身を含む): 268697088

約数和(自身を除く): 186840048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 20063, 40126, 60189, 80252, 100315, 120378, 160504, 200630, 240756, 300945, 321008, 341071, 401260, 481512, 601890, 682142, 802520, 963024, 1023213, 1203780, 1364284, 1605040, 1705355, 2046426, 2407560, 2728568, 3410710, 4092852, 4815120, 5116065, 5457136, 6821420, 8185704, 10232130, 13642840, 16371408, 20464260, 27285680, 40928520, 81857040]

約数ペア:

[(1, 81857040), (2, 40928520), (3, 27285680), (4, 20464260), (5, 16371408), (6, 13642840), (8, 10232130), (10, 8185704), (12, 6821420), (15, 5457136), (16, 5116065), (17, 4815120), (20, 4092852), (24, 3410710), (30, 2728568), (34, 2407560), (40, 2046426), (48, 1705355), (51, 1605040), (60, 1364284), (68, 1203780), (80, 1023213), (85, 963024), (102, 802520), (120, 682142), (136, 601890), (170, 481512), (204, 401260), (240, 341071), (255, 321008), (272, 300945), (340, 240756), (408, 200630), (510, 160504), (680, 120378), (816, 100315), (1020, 80252), (1360, 60189), (2040, 40126), (4080, 20063)]