28416080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{659}}^1$

素因数の和:697

約数の個数: 120

約数和(自身を含む): 83967840

約数和(自身を除く): 55551760

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 176, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 560, 616, 659, 770, 784, 880, 980, 1078, 1232, 1318, 1540, 1960, 2156, 2636, 2695, 3080, 3295, 3920, 4312, 4613, 5272, 5390, 6160, 6590, 7249, 8624, 9226, 10544, 10780, 13180, 14498, 18452, 21560, 23065, 26360, 28996, 32291, 36245, 36904, 43120, 46130, 50743, 52720, 57992, 64582, 72490, 73808, 92260, 101486, 115984, 129164, 144980, 161455, 184520, 202972, 253715, 258328, 289960, 322910, 355201, 369040, 405944, 507430, 516656, 579920, 645820, 710402, 811888, 1014860, 1291640, 1420804, 1776005, 2029720, 2583280, 2841608, 3552010, 4059440, 5683216, 7104020, 14208040, 28416080]

約数ペア:

[(1, 28416080), (2, 14208040), (4, 7104020), (5, 5683216), (7, 4059440), (8, 3552010), (10, 2841608), (11, 2583280), (14, 2029720), (16, 1776005), (20, 1420804), (22, 1291640), (28, 1014860), (35, 811888), (40, 710402), (44, 645820), (49, 579920), (55, 516656), (56, 507430), (70, 405944), (77, 369040), (80, 355201), (88, 322910), (98, 289960), (110, 258328), (112, 253715), (140, 202972), (154, 184520), (176, 161455), (196, 144980), (220, 129164), (245, 115984), (280, 101486), (308, 92260), (385, 73808), (392, 72490), (440, 64582), (490, 57992), (539, 52720), (560, 50743), (616, 46130), (659, 43120), (770, 36904), (784, 36245), (880, 32291), (980, 28996), (1078, 26360), (1232, 23065), (1318, 21560), (1540, 18452), (1960, 14498), (2156, 13180), (2636, 10780), (2695, 10544), (3080, 9226), (3295, 8624), (3920, 7249), (4312, 6590), (4613, 6160), (5272, 5390)]