20608380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8807}}^1$

素因数の和:8835

約数の個数: 72

約数和(自身を含む): 67328352

約数和(自身を除く): 46719972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8807, 17614, 26421, 35228, 44035, 52842, 79263, 88070, 105684, 114491, 132105, 158526, 176140, 228982, 264210, 317052, 343473, 396315, 457964, 528420, 572455, 686946, 792630, 1030419, 1144910, 1373892, 1585260, 1717365, 2060838, 2289820, 3434730, 4121676, 5152095, 6869460, 10304190, 20608380]

約数ペア:

[(1, 20608380), (2, 10304190), (3, 6869460), (4, 5152095), (5, 4121676), (6, 3434730), (9, 2289820), (10, 2060838), (12, 1717365), (13, 1585260), (15, 1373892), (18, 1144910), (20, 1030419), (26, 792630), (30, 686946), (36, 572455), (39, 528420), (45, 457964), (52, 396315), (60, 343473), (65, 317052), (78, 264210), (90, 228982), (117, 176140), (130, 158526), (156, 132105), (180, 114491), (195, 105684), (234, 88070), (260, 79263), (390, 52842), (468, 44035), (585, 35228), (780, 26421), (1170, 17614), (2340, 8807)]