68719950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{691}}^1$

素因数の和:739

約数の個数: 144

約数和(自身を含む): 210830256

約数和(自身を除く): 142110306

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 25, 26, 30, 34, 39, 45, 50, 51, 65, 75, 78, 85, 90, 102, 117, 130, 150, 153, 170, 195, 221, 225, 234, 255, 306, 325, 390, 425, 442, 450, 510, 585, 650, 663, 691, 765, 850, 975, 1105, 1170, 1275, 1326, 1382, 1530, 1950, 1989, 2073, 2210, 2550, 2925, 3315, 3455, 3825, 3978, 4146, 5525, 5850, 6219, 6630, 6910, 7650, 8983, 9945, 10365, 11050, 11747, 12438, 16575, 17275, 17966, 19890, 20730, 23494, 26949, 31095, 33150, 34550, 35241, 44915, 49725, 51825, 53898, 58735, 62190, 70482, 80847, 89830, 99450, 103650, 105723, 117470, 134745, 152711, 155475, 161694, 176205, 211446, 224575, 269490, 293675, 305422, 310950, 352410, 404235, 449150, 458133, 528615, 587350, 673725, 763555, 808470, 881025, 916266, 1057230, 1347450, 1374399, 1527110, 1762050, 2021175, 2290665, 2643075, 2748798, 3817775, 4042350, 4581330, 5286150, 6871995, 7635550, 11453325, 13743990, 22906650, 34359975, 68719950]

約数ペア:

[(1, 68719950), (2, 34359975), (3, 22906650), (5, 13743990), (6, 11453325), (9, 7635550), (10, 6871995), (13, 5286150), (15, 4581330), (17, 4042350), (18, 3817775), (25, 2748798), (26, 2643075), (30, 2290665), (34, 2021175), (39, 1762050), (45, 1527110), (50, 1374399), (51, 1347450), (65, 1057230), (75, 916266), (78, 881025), (85, 808470), (90, 763555), (102, 673725), (117, 587350), (130, 528615), (150, 458133), (153, 449150), (170, 404235), (195, 352410), (221, 310950), (225, 305422), (234, 293675), (255, 269490), (306, 224575), (325, 211446), (390, 176205), (425, 161694), (442, 155475), (450, 152711), (510, 134745), (585, 117470), (650, 105723), (663, 103650), (691, 99450), (765, 89830), (850, 80847), (975, 70482), (1105, 62190), (1170, 58735), (1275, 53898), (1326, 51825), (1382, 49725), (1530, 44915), (1950, 35241), (1989, 34550), (2073, 33150), (2210, 31095), (2550, 26949), (2925, 23494), (3315, 20730), (3455, 19890), (3825, 17966), (3978, 17275), (4146, 16575), (5525, 12438), (5850, 11747), (6219, 11050), (6630, 10365), (6910, 9945), (7650, 8983)]