219946240

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:316

約数の個数: 144

約数和(自身を含む): 569834496

約数和(自身を除く): 349888256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 92, 115, 124, 128, 155, 160, 184, 230, 241, 248, 256, 310, 320, 368, 460, 482, 496, 620, 640, 713, 736, 920, 964, 992, 1205, 1240, 1280, 1426, 1472, 1840, 1928, 1984, 2410, 2480, 2852, 2944, 3565, 3680, 3856, 3968, 4820, 4960, 5543, 5704, 5888, 7130, 7360, 7471, 7712, 7936, 9640, 9920, 11086, 11408, 14260, 14720, 14942, 15424, 19280, 19840, 22172, 22816, 27715, 28520, 29440, 29884, 30848, 37355, 38560, 39680, 44344, 45632, 55430, 57040, 59768, 61696, 74710, 77120, 88688, 91264, 110860, 114080, 119536, 149420, 154240, 171833, 177376, 182528, 221720, 228160, 239072, 298840, 308480, 343666, 354752, 443440, 456320, 478144, 597680, 687332, 709504, 859165, 886880, 912640, 956288, 1195360, 1374664, 1419008, 1718330, 1773760, 1912576, 2390720, 2749328, 3436660, 3547520, 4781440, 5498656, 6873320, 7095040, 9562880, 10997312, 13746640, 21994624, 27493280, 43989248, 54986560, 109973120, 219946240]

約数ペア:

[(1, 219946240), (2, 109973120), (4, 54986560), (5, 43989248), (8, 27493280), (10, 21994624), (16, 13746640), (20, 10997312), (23, 9562880), (31, 7095040), (32, 6873320), (40, 5498656), (46, 4781440), (62, 3547520), (64, 3436660), (80, 2749328), (92, 2390720), (115, 1912576), (124, 1773760), (128, 1718330), (155, 1419008), (160, 1374664), (184, 1195360), (230, 956288), (241, 912640), (248, 886880), (256, 859165), (310, 709504), (320, 687332), (368, 597680), (460, 478144), (482, 456320), (496, 443440), (620, 354752), (640, 343666), (713, 308480), (736, 298840), (920, 239072), (964, 228160), (992, 221720), (1205, 182528), (1240, 177376), (1280, 171833), (1426, 154240), (1472, 149420), (1840, 119536), (1928, 114080), (1984, 110860), (2410, 91264), (2480, 88688), (2852, 77120), (2944, 74710), (3565, 61696), (3680, 59768), (3856, 57040), (3968, 55430), (4820, 45632), (4960, 44344), (5543, 39680), (5704, 38560), (5888, 37355), (7130, 30848), (7360, 29884), (7471, 29440), (7712, 28520), (7936, 27715), (9640, 22816), (9920, 22172), (11086, 19840), (11408, 19280), (14260, 15424), (14720, 14942)]