81980500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{397}}^1$

素因数の和:482

約数の個数: 96

約数和(自身を含む): 208615680

約数和(自身を除く): 126635180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 59, 70, 100, 118, 125, 140, 175, 236, 250, 295, 350, 397, 413, 500, 590, 700, 794, 826, 875, 1180, 1475, 1588, 1652, 1750, 1985, 2065, 2779, 2950, 3500, 3970, 4130, 5558, 5900, 7375, 7940, 8260, 9925, 10325, 11116, 13895, 14750, 19850, 20650, 23423, 27790, 29500, 39700, 41300, 46846, 49625, 51625, 55580, 69475, 93692, 99250, 103250, 117115, 138950, 163961, 198500, 206500, 234230, 277900, 327922, 347375, 468460, 585575, 655844, 694750, 819805, 1171150, 1389500, 1639610, 2342300, 2927875, 3279220, 4099025, 5855750, 8198050, 11711500, 16396100, 20495125, 40990250, 81980500]

約数ペア:

[(1, 81980500), (2, 40990250), (4, 20495125), (5, 16396100), (7, 11711500), (10, 8198050), (14, 5855750), (20, 4099025), (25, 3279220), (28, 2927875), (35, 2342300), (50, 1639610), (59, 1389500), (70, 1171150), (100, 819805), (118, 694750), (125, 655844), (140, 585575), (175, 468460), (236, 347375), (250, 327922), (295, 277900), (350, 234230), (397, 206500), (413, 198500), (500, 163961), (590, 138950), (700, 117115), (794, 103250), (826, 99250), (875, 93692), (1180, 69475), (1475, 55580), (1588, 51625), (1652, 49625), (1750, 46846), (1985, 41300), (2065, 39700), (2779, 29500), (2950, 27790), (3500, 23423), (3970, 20650), (4130, 19850), (5558, 14750), (5900, 13895), (7375, 11116), (7940, 10325), (8260, 9925)]