28355220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8291}}^1$

素因数の和:8325

約数の個数: 72

約数和(自身を含む): 90548640

約数和(自身を除く): 62193420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 8291, 16582, 24873, 33164, 41455, 49746, 74619, 82910, 99492, 124365, 149238, 157529, 165820, 248730, 298476, 315058, 373095, 472587, 497460, 630116, 746190, 787645, 945174, 1417761, 1492380, 1575290, 1890348, 2362935, 2835522, 3150580, 4725870, 5671044, 7088805, 9451740, 14177610, 28355220]

約数ペア:

[(1, 28355220), (2, 14177610), (3, 9451740), (4, 7088805), (5, 5671044), (6, 4725870), (9, 3150580), (10, 2835522), (12, 2362935), (15, 1890348), (18, 1575290), (19, 1492380), (20, 1417761), (30, 945174), (36, 787645), (38, 746190), (45, 630116), (57, 497460), (60, 472587), (76, 373095), (90, 315058), (95, 298476), (114, 248730), (171, 165820), (180, 157529), (190, 149238), (228, 124365), (285, 99492), (342, 82910), (380, 74619), (570, 49746), (684, 41455), (855, 33164), (1140, 24873), (1710, 16582), (3420, 8291)]