245361520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{367}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 585641088

約数和(自身を除く): 340279568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 137, 244, 274, 305, 367, 488, 548, 610, 685, 734, 976, 1096, 1220, 1370, 1468, 1835, 2192, 2440, 2740, 2936, 3670, 4880, 5480, 5872, 7340, 8357, 10960, 14680, 16714, 22387, 29360, 33428, 41785, 44774, 50279, 66856, 83570, 89548, 100558, 111935, 133712, 167140, 179096, 201116, 223870, 251395, 334280, 358192, 402232, 447740, 502790, 668560, 804464, 895480, 1005580, 1790960, 2011160, 3067019, 4022320, 6134038, 12268076, 15335095, 24536152, 30670190, 49072304, 61340380, 122680760, 245361520]

約数ペア:

[(1, 245361520), (2, 122680760), (4, 61340380), (5, 49072304), (8, 30670190), (10, 24536152), (16, 15335095), (20, 12268076), (40, 6134038), (61, 4022320), (80, 3067019), (122, 2011160), (137, 1790960), (244, 1005580), (274, 895480), (305, 804464), (367, 668560), (488, 502790), (548, 447740), (610, 402232), (685, 358192), (734, 334280), (976, 251395), (1096, 223870), (1220, 201116), (1370, 179096), (1468, 167140), (1835, 133712), (2192, 111935), (2440, 100558), (2740, 89548), (2936, 83570), (3670, 66856), (4880, 50279), (5480, 44774), (5872, 41785), (7340, 33428), (8357, 29360), (10960, 22387), (14680, 16714)]