28905840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2113}}^1$

素因数の和:2151

約数の個数: 120

約数和(自身を含む): 102233040

約数和(自身を除く): 73327200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1710, 2113, 2280, 2736, 3420, 4226, 4560, 6339, 6840, 8452, 10565, 12678, 13680, 16904, 19017, 21130, 25356, 31695, 33808, 38034, 40147, 42260, 50712, 63390, 76068, 80294, 84520, 95085, 101424, 120441, 126780, 152136, 160588, 169040, 190170, 200735, 240882, 253560, 304272, 321176, 361323, 380340, 401470, 481764, 507120, 602205, 642352, 722646, 760680, 802940, 963528, 1204410, 1445292, 1521360, 1605880, 1806615, 1927056, 2408820, 2890584, 3211760, 3613230, 4817640, 5781168, 7226460, 9635280, 14452920, 28905840]

約数ペア:

[(1, 28905840), (2, 14452920), (3, 9635280), (4, 7226460), (5, 5781168), (6, 4817640), (8, 3613230), (9, 3211760), (10, 2890584), (12, 2408820), (15, 1927056), (16, 1806615), (18, 1605880), (19, 1521360), (20, 1445292), (24, 1204410), (30, 963528), (36, 802940), (38, 760680), (40, 722646), (45, 642352), (48, 602205), (57, 507120), (60, 481764), (72, 401470), (76, 380340), (80, 361323), (90, 321176), (95, 304272), (114, 253560), (120, 240882), (144, 200735), (152, 190170), (171, 169040), (180, 160588), (190, 152136), (228, 126780), (240, 120441), (285, 101424), (304, 95085), (342, 84520), (360, 80294), (380, 76068), (456, 63390), (570, 50712), (684, 42260), (720, 40147), (760, 38034), (855, 33808), (912, 31695), (1140, 25356), (1368, 21130), (1520, 19017), (1710, 16904), (2113, 13680), (2280, 12678), (2736, 10565), (3420, 8452), (4226, 6840), (4560, 6339)]