18224720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 44782848

約数和(自身を除く): 26558128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 47, 74, 80, 94, 131, 148, 185, 188, 235, 262, 296, 370, 376, 470, 524, 592, 655, 740, 752, 940, 1048, 1310, 1480, 1739, 1880, 2096, 2620, 2960, 3478, 3760, 4847, 5240, 6157, 6956, 8695, 9694, 10480, 12314, 13912, 17390, 19388, 24235, 24628, 27824, 30785, 34780, 38776, 48470, 49256, 61570, 69560, 77552, 96940, 98512, 123140, 139120, 193880, 227809, 246280, 387760, 455618, 492560, 911236, 1139045, 1822472, 2278090, 3644944, 4556180, 9112360, 18224720]

約数ペア:

[(1, 18224720), (2, 9112360), (4, 4556180), (5, 3644944), (8, 2278090), (10, 1822472), (16, 1139045), (20, 911236), (37, 492560), (40, 455618), (47, 387760), (74, 246280), (80, 227809), (94, 193880), (131, 139120), (148, 123140), (185, 98512), (188, 96940), (235, 77552), (262, 69560), (296, 61570), (370, 49256), (376, 48470), (470, 38776), (524, 34780), (592, 30785), (655, 27824), (740, 24628), (752, 24235), (940, 19388), (1048, 17390), (1310, 13912), (1480, 12314), (1739, 10480), (1880, 9694), (2096, 8695), (2620, 6956), (2960, 6157), (3478, 5240), (3760, 4847)]