31418940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{313}}^1$

素因数の和:571

約数の個数: 96

約数和(自身を含む): 101283840

約数和(自身を除く): 69864900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 239, 313, 420, 478, 626, 717, 939, 956, 1195, 1252, 1434, 1565, 1673, 1878, 2191, 2390, 2868, 3130, 3346, 3585, 3756, 4382, 4695, 4780, 5019, 6260, 6573, 6692, 7170, 8365, 8764, 9390, 10038, 10955, 13146, 14340, 16730, 18780, 20076, 21910, 25095, 26292, 32865, 33460, 43820, 50190, 65730, 74807, 100380, 131460, 149614, 224421, 299228, 374035, 448842, 523649, 748070, 897684, 1047298, 1122105, 1496140, 1570947, 2094596, 2244210, 2618245, 3141894, 4488420, 5236490, 6283788, 7854735, 10472980, 15709470, 31418940]

約数ペア:

[(1, 31418940), (2, 15709470), (3, 10472980), (4, 7854735), (5, 6283788), (6, 5236490), (7, 4488420), (10, 3141894), (12, 2618245), (14, 2244210), (15, 2094596), (20, 1570947), (21, 1496140), (28, 1122105), (30, 1047298), (35, 897684), (42, 748070), (60, 523649), (70, 448842), (84, 374035), (105, 299228), (140, 224421), (210, 149614), (239, 131460), (313, 100380), (420, 74807), (478, 65730), (626, 50190), (717, 43820), (939, 33460), (956, 32865), (1195, 26292), (1252, 25095), (1434, 21910), (1565, 20076), (1673, 18780), (1878, 16730), (2191, 14340), (2390, 13146), (2868, 10955), (3130, 10038), (3346, 9390), (3585, 8764), (3756, 8365), (4382, 7170), (4695, 6692), (4780, 6573), (5019, 6260)]