81320520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{39863}}^1$

素因数の和:39894

約数の個数: 64

約数和(自身を含む): 258318720

約数和(自身を除く): 176998200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 39863, 79726, 119589, 159452, 199315, 239178, 318904, 398630, 478356, 597945, 677671, 797260, 956712, 1195890, 1355342, 1594520, 2033013, 2391780, 2710684, 3388355, 4066026, 4783560, 5421368, 6776710, 8132052, 10165065, 13553420, 16264104, 20330130, 27106840, 40660260, 81320520]

約数ペア:

[(1, 81320520), (2, 40660260), (3, 27106840), (4, 20330130), (5, 16264104), (6, 13553420), (8, 10165065), (10, 8132052), (12, 6776710), (15, 5421368), (17, 4783560), (20, 4066026), (24, 3388355), (30, 2710684), (34, 2391780), (40, 2033013), (51, 1594520), (60, 1355342), (68, 1195890), (85, 956712), (102, 797260), (120, 677671), (136, 597945), (170, 478356), (204, 398630), (255, 318904), (340, 239178), (408, 199315), (510, 159452), (680, 119589), (1020, 79726), (2040, 39863)]