20428975760

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1\times {\mathrm{719}}^1$

素因数の和:1129

約数の個数: 160

約数和(自身を含む): 50686041600

約数和(自身を除く): 30257065840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 37, 40, 58, 74, 80, 116, 145, 148, 185, 232, 290, 296, 331, 370, 464, 580, 592, 662, 719, 740, 1073, 1160, 1324, 1438, 1480, 1655, 2146, 2320, 2648, 2876, 2960, 3310, 3595, 4292, 5296, 5365, 5752, 6620, 7190, 8584, 9599, 10730, 11504, 12247, 13240, 14380, 17168, 19198, 20851, 21460, 24494, 26480, 26603, 28760, 38396, 41702, 42920, 47995, 48988, 53206, 57520, 61235, 76792, 83404, 85840, 95990, 97976, 104255, 106412, 122470, 133015, 153584, 166808, 191980, 195952, 208510, 212824, 237989, 244940, 266030, 333616, 355163, 383960, 417020, 425648, 475978, 489880, 532060, 710326, 767920, 771487, 834040, 951956, 979760, 1064120, 1189945, 1420652, 1542974, 1668080, 1775815, 1903912, 2128240, 2379890, 2841304, 3085948, 3551630, 3807824, 3857435, 4759780, 5682608, 6171896, 6901681, 7103260, 7714870, 8805593, 9519560, 12343792, 13803362, 14206520, 15429740, 17611186, 19039120, 27606724, 28413040, 30859480, 34508405, 35222372, 44027965, 55213448, 61718960, 69016810, 70444744, 88055930, 110426896, 138033620, 140889488, 176111860, 255362197, 276067240, 352223720, 510724394, 552134480, 704447440, 1021448788, 1276810985, 2042897576, 2553621970, 4085795152, 5107243940, 10214487880, 20428975760]

約数ペア:

[(1, 20428975760), (2, 10214487880), (4, 5107243940), (5, 4085795152), (8, 2553621970), (10, 2042897576), (16, 1276810985), (20, 1021448788), (29, 704447440), (37, 552134480), (40, 510724394), (58, 352223720), (74, 276067240), (80, 255362197), (116, 176111860), (145, 140889488), (148, 138033620), (185, 110426896), (232, 88055930), (290, 70444744), (296, 69016810), (331, 61718960), (370, 55213448), (464, 44027965), (580, 35222372), (592, 34508405), (662, 30859480), (719, 28413040), (740, 27606724), (1073, 19039120), (1160, 17611186), (1324, 15429740), (1438, 14206520), (1480, 13803362), (1655, 12343792), (2146, 9519560), (2320, 8805593), (2648, 7714870), (2876, 7103260), (2960, 6901681), (3310, 6171896), (3595, 5682608), (4292, 4759780), (5296, 3857435), (5365, 3807824), (5752, 3551630), (6620, 3085948), (7190, 2841304), (8584, 2379890), (9599, 2128240), (10730, 1903912), (11504, 1775815), (12247, 1668080), (13240, 1542974), (14380, 1420652), (17168, 1189945), (19198, 1064120), (20851, 979760), (21460, 951956), (24494, 834040), (26480, 771487), (26603, 767920), (28760, 710326), (38396, 532060), (41702, 489880), (42920, 475978), (47995, 425648), (48988, 417020), (53206, 383960), (57520, 355163), (61235, 333616), (76792, 266030), (83404, 244940), (85840, 237989), (95990, 212824), (97976, 208510), (104255, 195952), (106412, 191980), (122470, 166808), (133015, 153584)]