81642120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1171}}^1$

素因数の和:1275

約数の個数: 128

約数和(自身を含む): 283530240

約数和(自身を除く): 201888120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 83, 84, 105, 120, 140, 166, 168, 210, 249, 280, 332, 415, 420, 498, 581, 664, 830, 840, 996, 1162, 1171, 1245, 1660, 1743, 1992, 2324, 2342, 2490, 2905, 3320, 3486, 3513, 4648, 4684, 4980, 5810, 5855, 6972, 7026, 8197, 8715, 9368, 9960, 11620, 11710, 13944, 14052, 16394, 17430, 17565, 23240, 23420, 24591, 28104, 32788, 34860, 35130, 40985, 46840, 49182, 65576, 69720, 70260, 81970, 97193, 98364, 122955, 140520, 163940, 194386, 196728, 245910, 291579, 327880, 388772, 485965, 491820, 583158, 680351, 777544, 971930, 983640, 1166316, 1360702, 1457895, 1943860, 2041053, 2332632, 2721404, 2915790, 3401755, 3887720, 4082106, 5442808, 5831580, 6803510, 8164212, 10205265, 11663160, 13607020, 16328424, 20410530, 27214040, 40821060, 81642120]

約数ペア:

[(1, 81642120), (2, 40821060), (3, 27214040), (4, 20410530), (5, 16328424), (6, 13607020), (7, 11663160), (8, 10205265), (10, 8164212), (12, 6803510), (14, 5831580), (15, 5442808), (20, 4082106), (21, 3887720), (24, 3401755), (28, 2915790), (30, 2721404), (35, 2332632), (40, 2041053), (42, 1943860), (56, 1457895), (60, 1360702), (70, 1166316), (83, 983640), (84, 971930), (105, 777544), (120, 680351), (140, 583158), (166, 491820), (168, 485965), (210, 388772), (249, 327880), (280, 291579), (332, 245910), (415, 196728), (420, 194386), (498, 163940), (581, 140520), (664, 122955), (830, 98364), (840, 97193), (996, 81970), (1162, 70260), (1171, 69720), (1245, 65576), (1660, 49182), (1743, 46840), (1992, 40985), (2324, 35130), (2342, 34860), (2490, 32788), (2905, 28104), (3320, 24591), (3486, 23420), (3513, 23240), (4648, 17565), (4684, 17430), (4980, 16394), (5810, 14052), (5855, 13944), (6972, 11710), (7026, 11620), (8197, 9960), (8715, 9368)]