788395720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1489}}^1$

素因数の和:1599

約数の個数: 128

約数和(自身を含む): 2128435200

約数和(自身を除く): 1340039480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 61, 62, 70, 122, 124, 140, 155, 217, 244, 248, 280, 305, 310, 427, 434, 488, 610, 620, 854, 868, 1085, 1220, 1240, 1489, 1708, 1736, 1891, 2135, 2170, 2440, 2978, 3416, 3782, 4270, 4340, 5956, 7445, 7564, 8540, 8680, 9455, 10423, 11912, 13237, 14890, 15128, 17080, 18910, 20846, 26474, 29780, 37820, 41692, 46159, 52115, 52948, 59560, 66185, 75640, 83384, 90829, 92318, 104230, 105896, 132370, 181658, 184636, 208460, 230795, 264740, 323113, 363316, 369272, 416920, 454145, 461590, 529480, 635803, 646226, 726632, 908290, 923180, 1271606, 1292452, 1615565, 1816580, 1846360, 2543212, 2584904, 2815699, 3179015, 3231130, 3633160, 5086424, 5631398, 6358030, 6462260, 11262796, 12716060, 12924520, 14078495, 19709893, 22525592, 25432120, 28156990, 39419786, 56313980, 78839572, 98549465, 112627960, 157679144, 197098930, 394197860, 788395720]

約数ペア:

[(1, 788395720), (2, 394197860), (4, 197098930), (5, 157679144), (7, 112627960), (8, 98549465), (10, 78839572), (14, 56313980), (20, 39419786), (28, 28156990), (31, 25432120), (35, 22525592), (40, 19709893), (56, 14078495), (61, 12924520), (62, 12716060), (70, 11262796), (122, 6462260), (124, 6358030), (140, 5631398), (155, 5086424), (217, 3633160), (244, 3231130), (248, 3179015), (280, 2815699), (305, 2584904), (310, 2543212), (427, 1846360), (434, 1816580), (488, 1615565), (610, 1292452), (620, 1271606), (854, 923180), (868, 908290), (1085, 726632), (1220, 646226), (1240, 635803), (1489, 529480), (1708, 461590), (1736, 454145), (1891, 416920), (2135, 369272), (2170, 363316), (2440, 323113), (2978, 264740), (3416, 230795), (3782, 208460), (4270, 184636), (4340, 181658), (5956, 132370), (7445, 105896), (7564, 104230), (8540, 92318), (8680, 90829), (9455, 83384), (10423, 75640), (11912, 66185), (13237, 59560), (14890, 52948), (15128, 52115), (17080, 46159), (18910, 41692), (20846, 37820), (26474, 29780)]