388625720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{19013}}^1$

素因数の和:19104

約数の個数: 64

約数和(自身を含む): 1013065920

約数和(自身を除く): 624440200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 10220, 19013, 20440, 38026, 76052, 95065, 133091, 152104, 190130, 266182, 380260, 532364, 665455, 760520, 1064728, 1330910, 1387949, 2661820, 2775898, 5323640, 5551796, 6939745, 9715643, 11103592, 13879490, 19431286, 27758980, 38862572, 48578215, 55517960, 77725144, 97156430, 194312860, 388625720]

約数ペア:

[(1, 388625720), (2, 194312860), (4, 97156430), (5, 77725144), (7, 55517960), (8, 48578215), (10, 38862572), (14, 27758980), (20, 19431286), (28, 13879490), (35, 11103592), (40, 9715643), (56, 6939745), (70, 5551796), (73, 5323640), (140, 2775898), (146, 2661820), (280, 1387949), (292, 1330910), (365, 1064728), (511, 760520), (584, 665455), (730, 532364), (1022, 380260), (1460, 266182), (2044, 190130), (2555, 152104), (2920, 133091), (4088, 95065), (5110, 76052), (10220, 38026), (19013, 20440)]