220718890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1\times {\mathrm{239}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 464486400

約数和(自身を除く): 243767510

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 158, 167, 239, 334, 395, 478, 553, 790, 835, 1106, 1169, 1195, 1670, 1673, 2338, 2390, 2765, 3346, 5530, 5845, 8365, 11690, 13193, 16730, 18881, 26386, 37762, 39913, 65965, 79826, 92351, 94405, 131930, 132167, 184702, 188810, 199565, 264334, 279391, 399130, 461755, 558782, 660835, 923510, 1321670, 1396955, 2793910, 3153127, 6306254, 15765635, 22071889, 31531270, 44143778, 110359445, 220718890]

約数ペア:

[(1, 220718890), (2, 110359445), (5, 44143778), (7, 31531270), (10, 22071889), (14, 15765635), (35, 6306254), (70, 3153127), (79, 2793910), (158, 1396955), (167, 1321670), (239, 923510), (334, 660835), (395, 558782), (478, 461755), (553, 399130), (790, 279391), (835, 264334), (1106, 199565), (1169, 188810), (1195, 184702), (1670, 132167), (1673, 131930), (2338, 94405), (2390, 92351), (2765, 79826), (3346, 65965), (5530, 39913), (5845, 37762), (8365, 26386), (11690, 18881), (13193, 16730)]