28881900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:605

約数の個数: 144

約数和(自身を含む): 97910400

約数和(自身を除く): 69028500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 27, 30, 36, 38, 45, 50, 54, 57, 60, 75, 76, 90, 95, 100, 108, 114, 135, 150, 171, 180, 190, 225, 228, 270, 285, 300, 342, 380, 450, 475, 513, 540, 563, 570, 675, 684, 855, 900, 950, 1026, 1126, 1140, 1350, 1425, 1689, 1710, 1900, 2052, 2252, 2565, 2700, 2815, 2850, 3378, 3420, 4275, 5067, 5130, 5630, 5700, 6756, 8445, 8550, 10134, 10260, 10697, 11260, 12825, 14075, 15201, 16890, 17100, 20268, 21394, 25335, 25650, 28150, 30402, 32091, 33780, 42225, 42788, 50670, 51300, 53485, 56300, 60804, 64182, 76005, 84450, 96273, 101340, 106970, 126675, 128364, 152010, 160455, 168900, 192546, 213940, 253350, 267425, 288819, 304020, 320910, 380025, 385092, 481365, 506700, 534850, 577638, 641820, 760050, 802275, 962730, 1069700, 1155276, 1444095, 1520100, 1604550, 1925460, 2406825, 2888190, 3209100, 4813650, 5776380, 7220475, 9627300, 14440950, 28881900]

約数ペア:

[(1, 28881900), (2, 14440950), (3, 9627300), (4, 7220475), (5, 5776380), (6, 4813650), (9, 3209100), (10, 2888190), (12, 2406825), (15, 1925460), (18, 1604550), (19, 1520100), (20, 1444095), (25, 1155276), (27, 1069700), (30, 962730), (36, 802275), (38, 760050), (45, 641820), (50, 577638), (54, 534850), (57, 506700), (60, 481365), (75, 385092), (76, 380025), (90, 320910), (95, 304020), (100, 288819), (108, 267425), (114, 253350), (135, 213940), (150, 192546), (171, 168900), (180, 160455), (190, 152010), (225, 128364), (228, 126675), (270, 106970), (285, 101340), (300, 96273), (342, 84450), (380, 76005), (450, 64182), (475, 60804), (513, 56300), (540, 53485), (563, 51300), (570, 50670), (675, 42788), (684, 42225), (855, 33780), (900, 32091), (950, 30402), (1026, 28150), (1126, 25650), (1140, 25335), (1350, 21394), (1425, 20268), (1689, 17100), (1710, 16890), (1900, 15201), (2052, 14075), (2252, 12825), (2565, 11260), (2700, 10697), (2815, 10260), (2850, 10134), (3378, 8550), (3420, 8445), (4275, 6756), (5067, 5700), (5130, 5630)]