245384520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{347}}^1$

素因数の和:515

約数の個数: 128

約数和(自身を含む): 757693440

約数和(自身を除く): 512308920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 83, 120, 142, 166, 213, 249, 284, 332, 347, 355, 415, 426, 498, 568, 664, 694, 710, 830, 852, 996, 1041, 1065, 1245, 1388, 1420, 1660, 1704, 1735, 1992, 2082, 2130, 2490, 2776, 2840, 3320, 3470, 4164, 4260, 4980, 5205, 5893, 6940, 8328, 8520, 9960, 10410, 11786, 13880, 17679, 20820, 23572, 24637, 28801, 29465, 35358, 41640, 47144, 49274, 57602, 58930, 70716, 73911, 86403, 88395, 98548, 115204, 117860, 123185, 141432, 144005, 147822, 172806, 176790, 197096, 230408, 235720, 246370, 288010, 295644, 345612, 353580, 369555, 432015, 492740, 576020, 591288, 691224, 707160, 739110, 864030, 985480, 1152040, 1478220, 1728060, 2044871, 2956440, 3456120, 4089742, 6134613, 8179484, 10224355, 12269226, 16358968, 20448710, 24538452, 30673065, 40897420, 49076904, 61346130, 81794840, 122692260, 245384520]

約数ペア:

[(1, 245384520), (2, 122692260), (3, 81794840), (4, 61346130), (5, 49076904), (6, 40897420), (8, 30673065), (10, 24538452), (12, 20448710), (15, 16358968), (20, 12269226), (24, 10224355), (30, 8179484), (40, 6134613), (60, 4089742), (71, 3456120), (83, 2956440), (120, 2044871), (142, 1728060), (166, 1478220), (213, 1152040), (249, 985480), (284, 864030), (332, 739110), (347, 707160), (355, 691224), (415, 591288), (426, 576020), (498, 492740), (568, 432015), (664, 369555), (694, 353580), (710, 345612), (830, 295644), (852, 288010), (996, 246370), (1041, 235720), (1065, 230408), (1245, 197096), (1388, 176790), (1420, 172806), (1660, 147822), (1704, 144005), (1735, 141432), (1992, 123185), (2082, 117860), (2130, 115204), (2490, 98548), (2776, 88395), (2840, 86403), (3320, 73911), (3470, 70716), (4164, 58930), (4260, 57602), (4980, 49274), (5205, 47144), (5893, 41640), (6940, 35358), (8328, 29465), (8520, 28801), (9960, 24637), (10410, 23572), (11786, 20820), (13880, 17679)]