15986220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1$

素因数の和:447

約数の個数: 96

約数和(自身を含む): 48518400

約数和(自身を除く): 32532180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 37, 38, 57, 60, 74, 76, 95, 111, 114, 148, 185, 190, 222, 228, 285, 370, 379, 380, 444, 555, 570, 703, 740, 758, 1110, 1137, 1140, 1406, 1516, 1895, 2109, 2220, 2274, 2812, 3515, 3790, 4218, 4548, 5685, 7030, 7201, 7580, 8436, 10545, 11370, 14023, 14060, 14402, 21090, 21603, 22740, 28046, 28804, 36005, 42069, 42180, 43206, 56092, 70115, 72010, 84138, 86412, 108015, 140230, 144020, 168276, 210345, 216030, 266437, 280460, 420690, 432060, 532874, 799311, 841380, 1065748, 1332185, 1598622, 2664370, 3197244, 3996555, 5328740, 7993110, 15986220]

約数ペア:

[(1, 15986220), (2, 7993110), (3, 5328740), (4, 3996555), (5, 3197244), (6, 2664370), (10, 1598622), (12, 1332185), (15, 1065748), (19, 841380), (20, 799311), (30, 532874), (37, 432060), (38, 420690), (57, 280460), (60, 266437), (74, 216030), (76, 210345), (95, 168276), (111, 144020), (114, 140230), (148, 108015), (185, 86412), (190, 84138), (222, 72010), (228, 70115), (285, 56092), (370, 43206), (379, 42180), (380, 42069), (444, 36005), (555, 28804), (570, 28046), (703, 22740), (740, 21603), (758, 21090), (1110, 14402), (1137, 14060), (1140, 14023), (1406, 11370), (1516, 10545), (1895, 8436), (2109, 7580), (2220, 7201), (2274, 7030), (2812, 5685), (3515, 4548), (3790, 4218)]