20713290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{307}}^1$

素因数の和:503

約数の個数: 64

約数和(自身を含む): 54020736

約数和(自身を除く): 33307446

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 173, 195, 307, 346, 390, 519, 614, 865, 921, 1038, 1535, 1730, 1842, 2249, 2595, 3070, 3991, 4498, 4605, 5190, 6747, 7982, 9210, 11245, 11973, 13494, 19955, 22490, 23946, 33735, 39910, 53111, 59865, 67470, 106222, 119730, 159333, 265555, 318666, 531110, 690443, 796665, 1380886, 1593330, 2071329, 3452215, 4142658, 6904430, 10356645, 20713290]

約数ペア:

[(1, 20713290), (2, 10356645), (3, 6904430), (5, 4142658), (6, 3452215), (10, 2071329), (13, 1593330), (15, 1380886), (26, 796665), (30, 690443), (39, 531110), (65, 318666), (78, 265555), (130, 159333), (173, 119730), (195, 106222), (307, 67470), (346, 59865), (390, 53111), (519, 39910), (614, 33735), (865, 23946), (921, 22490), (1038, 19955), (1535, 13494), (1730, 11973), (1842, 11245), (2249, 9210), (2595, 7982), (3070, 6747), (3991, 5190), (4498, 4605)]