28994900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:681

約数の個数: 72

約数和(自身を含む): 70349664

約数和(自身を除く): 41354764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 613, 860, 946, 1075, 1100, 1226, 1892, 2150, 2365, 2452, 3065, 4300, 4730, 6130, 6743, 9460, 11825, 12260, 13486, 15325, 23650, 26359, 26972, 30650, 33715, 47300, 52718, 61300, 67430, 105436, 131795, 134860, 168575, 263590, 289949, 337150, 527180, 579898, 658975, 674300, 1159796, 1317950, 1449745, 2635900, 2899490, 5798980, 7248725, 14497450, 28994900]

約数ペア:

[(1, 28994900), (2, 14497450), (4, 7248725), (5, 5798980), (10, 2899490), (11, 2635900), (20, 1449745), (22, 1317950), (25, 1159796), (43, 674300), (44, 658975), (50, 579898), (55, 527180), (86, 337150), (100, 289949), (110, 263590), (172, 168575), (215, 134860), (220, 131795), (275, 105436), (430, 67430), (473, 61300), (550, 52718), (613, 47300), (860, 33715), (946, 30650), (1075, 26972), (1100, 26359), (1226, 23650), (1892, 15325), (2150, 13486), (2365, 12260), (2452, 11825), (3065, 9460), (4300, 6743), (4730, 6130)]