81936840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:307

約数の個数: 128

約数和(自身を含む): 255052800

約数和(自身を除く): 173115960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 59, 60, 71, 118, 120, 142, 163, 177, 213, 236, 284, 295, 326, 354, 355, 426, 472, 489, 568, 590, 652, 708, 710, 815, 852, 885, 978, 1065, 1180, 1304, 1416, 1420, 1630, 1704, 1770, 1956, 2130, 2360, 2445, 2840, 3260, 3540, 3912, 4189, 4260, 4890, 6520, 7080, 8378, 8520, 9617, 9780, 11573, 12567, 16756, 19234, 19560, 20945, 23146, 25134, 28851, 33512, 34719, 38468, 41890, 46292, 48085, 50268, 57702, 57865, 62835, 69438, 76936, 83780, 92584, 96170, 100536, 115404, 115730, 125670, 138876, 144255, 167560, 173595, 192340, 230808, 231460, 251340, 277752, 288510, 347190, 384680, 462920, 502680, 577020, 682807, 694380, 1154040, 1365614, 1388760, 2048421, 2731228, 3414035, 4096842, 5462456, 6828070, 8193684, 10242105, 13656140, 16387368, 20484210, 27312280, 40968420, 81936840]

約数ペア:

[(1, 81936840), (2, 40968420), (3, 27312280), (4, 20484210), (5, 16387368), (6, 13656140), (8, 10242105), (10, 8193684), (12, 6828070), (15, 5462456), (20, 4096842), (24, 3414035), (30, 2731228), (40, 2048421), (59, 1388760), (60, 1365614), (71, 1154040), (118, 694380), (120, 682807), (142, 577020), (163, 502680), (177, 462920), (213, 384680), (236, 347190), (284, 288510), (295, 277752), (326, 251340), (354, 231460), (355, 230808), (426, 192340), (472, 173595), (489, 167560), (568, 144255), (590, 138876), (652, 125670), (708, 115730), (710, 115404), (815, 100536), (852, 96170), (885, 92584), (978, 83780), (1065, 76936), (1180, 69438), (1304, 62835), (1416, 57865), (1420, 57702), (1630, 50268), (1704, 48085), (1770, 46292), (1956, 41890), (2130, 38468), (2360, 34719), (2445, 33512), (2840, 28851), (3260, 25134), (3540, 23146), (3912, 20945), (4189, 19560), (4260, 19234), (4890, 16756), (6520, 12567), (7080, 11573), (8378, 9780), (8520, 9617)]