789590980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{31013}}^1$

素因数の和:31108

約数の個数: 48

約数和(自身を含む): 1771519680

約数和(自身を除く): 981928700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 1273, 1340, 2546, 5092, 6365, 12730, 25460, 31013, 62026, 124052, 155065, 310130, 589247, 620260, 1178494, 2077871, 2356988, 2946235, 4155742, 5892470, 8311484, 10389355, 11784940, 20778710, 39479549, 41557420, 78959098, 157918196, 197397745, 394795490, 789590980]

約数ペア:

[(1, 789590980), (2, 394795490), (4, 197397745), (5, 157918196), (10, 78959098), (19, 41557420), (20, 39479549), (38, 20778710), (67, 11784940), (76, 10389355), (95, 8311484), (134, 5892470), (190, 4155742), (268, 2946235), (335, 2356988), (380, 2077871), (670, 1178494), (1273, 620260), (1340, 589247), (2546, 310130), (5092, 155065), (6365, 124052), (12730, 62026), (25460, 31013)]