28708920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4691}}^1$

素因数の和:4725

約数の個数: 96

約数和(自身を含む): 98813520

約数和(自身を除く): 70104600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 255, 306, 340, 360, 408, 510, 612, 680, 765, 1020, 1224, 1530, 2040, 3060, 4691, 6120, 9382, 14073, 18764, 23455, 28146, 37528, 42219, 46910, 56292, 70365, 79747, 84438, 93820, 112584, 140730, 159494, 168876, 187640, 211095, 239241, 281460, 318988, 337752, 398735, 422190, 478482, 562920, 637976, 717723, 797470, 844380, 956964, 1196205, 1435446, 1594940, 1688760, 1913928, 2392410, 2870892, 3189880, 3588615, 4784820, 5741784, 7177230, 9569640, 14354460, 28708920]

約数ペア:

[(1, 28708920), (2, 14354460), (3, 9569640), (4, 7177230), (5, 5741784), (6, 4784820), (8, 3588615), (9, 3189880), (10, 2870892), (12, 2392410), (15, 1913928), (17, 1688760), (18, 1594940), (20, 1435446), (24, 1196205), (30, 956964), (34, 844380), (36, 797470), (40, 717723), (45, 637976), (51, 562920), (60, 478482), (68, 422190), (72, 398735), (85, 337752), (90, 318988), (102, 281460), (120, 239241), (136, 211095), (153, 187640), (170, 168876), (180, 159494), (204, 140730), (255, 112584), (306, 93820), (340, 84438), (360, 79747), (408, 70365), (510, 56292), (612, 46910), (680, 42219), (765, 37528), (1020, 28146), (1224, 23455), (1530, 18764), (2040, 14073), (3060, 9382), (4691, 6120)]