18812280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:293

約数の個数: 128

約数和(自身を含む): 61286400

約数和(自身を除く): 42474120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 37, 38, 40, 57, 60, 74, 76, 95, 111, 114, 120, 148, 152, 185, 190, 222, 223, 228, 285, 296, 370, 380, 444, 446, 456, 555, 570, 669, 703, 740, 760, 888, 892, 1110, 1115, 1140, 1338, 1406, 1480, 1784, 2109, 2220, 2230, 2280, 2676, 2812, 3345, 3515, 4218, 4237, 4440, 4460, 5352, 5624, 6690, 7030, 8251, 8436, 8474, 8920, 10545, 12711, 13380, 14060, 16502, 16872, 16948, 21090, 21185, 24753, 25422, 26760, 28120, 33004, 33896, 41255, 42180, 42370, 49506, 50844, 63555, 66008, 82510, 84360, 84740, 99012, 101688, 123765, 127110, 156769, 165020, 169480, 198024, 247530, 254220, 313538, 330040, 470307, 495060, 508440, 627076, 783845, 940614, 990120, 1254152, 1567690, 1881228, 2351535, 3135380, 3762456, 4703070, 6270760, 9406140, 18812280]

約数ペア:

[(1, 18812280), (2, 9406140), (3, 6270760), (4, 4703070), (5, 3762456), (6, 3135380), (8, 2351535), (10, 1881228), (12, 1567690), (15, 1254152), (19, 990120), (20, 940614), (24, 783845), (30, 627076), (37, 508440), (38, 495060), (40, 470307), (57, 330040), (60, 313538), (74, 254220), (76, 247530), (95, 198024), (111, 169480), (114, 165020), (120, 156769), (148, 127110), (152, 123765), (185, 101688), (190, 99012), (222, 84740), (223, 84360), (228, 82510), (285, 66008), (296, 63555), (370, 50844), (380, 49506), (444, 42370), (446, 42180), (456, 41255), (555, 33896), (570, 33004), (669, 28120), (703, 26760), (740, 25422), (760, 24753), (888, 21185), (892, 21090), (1110, 16948), (1115, 16872), (1140, 16502), (1338, 14060), (1406, 13380), (1480, 12711), (1784, 10545), (2109, 8920), (2220, 8474), (2230, 8436), (2280, 8251), (2676, 7030), (2812, 6690), (3345, 5624), (3515, 5352), (4218, 4460), (4237, 4440)]