28901520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:449

約数の個数: 120

約数和(自身を含む): 98103096

約数和(自身を除く): 69201576

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 137, 144, 180, 240, 274, 293, 360, 411, 548, 586, 685, 720, 822, 879, 1096, 1172, 1233, 1370, 1465, 1644, 1758, 2055, 2192, 2344, 2466, 2637, 2740, 2930, 3288, 3516, 4110, 4395, 4688, 4932, 5274, 5480, 5860, 6165, 6576, 7032, 8220, 8790, 9864, 10548, 10960, 11720, 12330, 13185, 14064, 16440, 17580, 19728, 21096, 23440, 24660, 26370, 32880, 35160, 40141, 42192, 49320, 52740, 70320, 80282, 98640, 105480, 120423, 160564, 200705, 210960, 240846, 321128, 361269, 401410, 481692, 602115, 642256, 722538, 802820, 963384, 1204230, 1445076, 1605640, 1806345, 1926768, 2408460, 2890152, 3211280, 3612690, 4816920, 5780304, 7225380, 9633840, 14450760, 28901520]

約数ペア:

[(1, 28901520), (2, 14450760), (3, 9633840), (4, 7225380), (5, 5780304), (6, 4816920), (8, 3612690), (9, 3211280), (10, 2890152), (12, 2408460), (15, 1926768), (16, 1806345), (18, 1605640), (20, 1445076), (24, 1204230), (30, 963384), (36, 802820), (40, 722538), (45, 642256), (48, 602115), (60, 481692), (72, 401410), (80, 361269), (90, 321128), (120, 240846), (137, 210960), (144, 200705), (180, 160564), (240, 120423), (274, 105480), (293, 98640), (360, 80282), (411, 70320), (548, 52740), (586, 49320), (685, 42192), (720, 40141), (822, 35160), (879, 32880), (1096, 26370), (1172, 24660), (1233, 23440), (1370, 21096), (1465, 19728), (1644, 17580), (1758, 16440), (2055, 14064), (2192, 13185), (2344, 12330), (2466, 11720), (2637, 10960), (2740, 10548), (2930, 9864), (3288, 8790), (3516, 8220), (4110, 7032), (4395, 6576), (4688, 6165), (4932, 5860), (5274, 5480)]