161615840

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:676

約数の個数: 96

約数和(自身を含む): 402161760

約数和(自身を除く): 240545920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 61, 80, 116, 122, 145, 160, 232, 244, 290, 305, 464, 488, 571, 580, 610, 928, 976, 1142, 1160, 1220, 1769, 1952, 2284, 2320, 2440, 2855, 3538, 4568, 4640, 4880, 5710, 7076, 8845, 9136, 9760, 11420, 14152, 16559, 17690, 18272, 22840, 28304, 33118, 34831, 35380, 45680, 56608, 66236, 69662, 70760, 82795, 91360, 132472, 139324, 141520, 165590, 174155, 264944, 278648, 283040, 331180, 348310, 529888, 557296, 662360, 696620, 1010099, 1114592, 1324720, 1393240, 2020198, 2649440, 2786480, 4040396, 5050495, 5572960, 8080792, 10100990, 16161584, 20201980, 32323168, 40403960, 80807920, 161615840]

約数ペア:

[(1, 161615840), (2, 80807920), (4, 40403960), (5, 32323168), (8, 20201980), (10, 16161584), (16, 10100990), (20, 8080792), (29, 5572960), (32, 5050495), (40, 4040396), (58, 2786480), (61, 2649440), (80, 2020198), (116, 1393240), (122, 1324720), (145, 1114592), (160, 1010099), (232, 696620), (244, 662360), (290, 557296), (305, 529888), (464, 348310), (488, 331180), (571, 283040), (580, 278648), (610, 264944), (928, 174155), (976, 165590), (1142, 141520), (1160, 139324), (1220, 132472), (1769, 91360), (1952, 82795), (2284, 70760), (2320, 69662), (2440, 66236), (2855, 56608), (3538, 45680), (4568, 35380), (4640, 34831), (4880, 33118), (5710, 28304), (7076, 22840), (8845, 18272), (9136, 17690), (9760, 16559), (11420, 14152)]