28923120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1$

素因数の和:192

約数の個数: 180

約数和(自身を含む): 103925640

約数和(自身を除く): 75002520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 102, 120, 136, 139, 144, 153, 170, 180, 204, 240, 255, 272, 278, 289, 306, 340, 360, 408, 417, 510, 556, 578, 612, 680, 695, 720, 765, 816, 834, 867, 1020, 1112, 1156, 1224, 1251, 1360, 1390, 1445, 1530, 1668, 1734, 2040, 2085, 2224, 2312, 2363, 2448, 2502, 2601, 2780, 2890, 3060, 3336, 3468, 4080, 4170, 4335, 4624, 4726, 5004, 5202, 5560, 5780, 6120, 6255, 6672, 6936, 7089, 8340, 8670, 9452, 10008, 10404, 11120, 11560, 11815, 12240, 12510, 13005, 13872, 14178, 16680, 17340, 18904, 20016, 20808, 21267, 23120, 23630, 25020, 26010, 28356, 33360, 34680, 35445, 37808, 40171, 41616, 42534, 47260, 50040, 52020, 56712, 69360, 70890, 80342, 85068, 94520, 100080, 104040, 106335, 113424, 120513, 141780, 160684, 170136, 189040, 200855, 208080, 212670, 241026, 283560, 321368, 340272, 361539, 401710, 425340, 482052, 567120, 602565, 642736, 723078, 803420, 850680, 964104, 1205130, 1446156, 1606840, 1701360, 1807695, 1928208, 2410260, 2892312, 3213680, 3615390, 4820520, 5784624, 7230780, 9641040, 14461560, 28923120]

約数ペア:

[(1, 28923120), (2, 14461560), (3, 9641040), (4, 7230780), (5, 5784624), (6, 4820520), (8, 3615390), (9, 3213680), (10, 2892312), (12, 2410260), (15, 1928208), (16, 1807695), (17, 1701360), (18, 1606840), (20, 1446156), (24, 1205130), (30, 964104), (34, 850680), (36, 803420), (40, 723078), (45, 642736), (48, 602565), (51, 567120), (60, 482052), (68, 425340), (72, 401710), (80, 361539), (85, 340272), (90, 321368), (102, 283560), (120, 241026), (136, 212670), (139, 208080), (144, 200855), (153, 189040), (170, 170136), (180, 160684), (204, 141780), (240, 120513), (255, 113424), (272, 106335), (278, 104040), (289, 100080), (306, 94520), (340, 85068), (360, 80342), (408, 70890), (417, 69360), (510, 56712), (556, 52020), (578, 50040), (612, 47260), (680, 42534), (695, 41616), (720, 40171), (765, 37808), (816, 35445), (834, 34680), (867, 33360), (1020, 28356), (1112, 26010), (1156, 25020), (1224, 23630), (1251, 23120), (1360, 21267), (1390, 20808), (1445, 20016), (1530, 18904), (1668, 17340), (1734, 16680), (2040, 14178), (2085, 13872), (2224, 13005), (2312, 12510), (2363, 12240), (2448, 11815), (2502, 11560), (2601, 11120), (2780, 10404), (2890, 10008), (3060, 9452), (3336, 8670), (3468, 8340), (4080, 7089), (4170, 6936), (4335, 6672), (4624, 6255), (4726, 6120), (5004, 5780), (5202, 5560)]