208501660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 474969600

約数和(自身を除く): 266467940

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 61, 62, 74, 122, 124, 148, 149, 155, 185, 244, 298, 305, 310, 370, 596, 610, 620, 740, 745, 1147, 1220, 1490, 1891, 2257, 2294, 2980, 3782, 4514, 4588, 4619, 5513, 5735, 7564, 9028, 9089, 9238, 9455, 11026, 11285, 11470, 18178, 18476, 18910, 22052, 22570, 22940, 23095, 27565, 36356, 37820, 45140, 45445, 46190, 55130, 69967, 90890, 92380, 110260, 139934, 170903, 181780, 279868, 281759, 336293, 341806, 349835, 563518, 672586, 683612, 699670, 854515, 1127036, 1345172, 1399340, 1408795, 1681465, 1709030, 2817590, 3362930, 3418060, 5635180, 6725860, 10425083, 20850166, 41700332, 52125415, 104250830, 208501660]

約数ペア:

[(1, 208501660), (2, 104250830), (4, 52125415), (5, 41700332), (10, 20850166), (20, 10425083), (31, 6725860), (37, 5635180), (61, 3418060), (62, 3362930), (74, 2817590), (122, 1709030), (124, 1681465), (148, 1408795), (149, 1399340), (155, 1345172), (185, 1127036), (244, 854515), (298, 699670), (305, 683612), (310, 672586), (370, 563518), (596, 349835), (610, 341806), (620, 336293), (740, 281759), (745, 279868), (1147, 181780), (1220, 170903), (1490, 139934), (1891, 110260), (2257, 92380), (2294, 90890), (2980, 69967), (3782, 55130), (4514, 46190), (4588, 45445), (4619, 45140), (5513, 37820), (5735, 36356), (7564, 27565), (9028, 23095), (9089, 22940), (9238, 22570), (9455, 22052), (11026, 18910), (11285, 18476), (11470, 18178)]