20091401720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1279}}^1\times {\mathrm{1777}}^1$

素因数の和:3097

約数の個数: 128

約数和(自身を含む): 51616051200

約数和(自身を除く): 31524649480

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1279, 1768, 1777, 2210, 2558, 3554, 4420, 5116, 6395, 7108, 8840, 8885, 10232, 12790, 14216, 16627, 17770, 21743, 23101, 25580, 30209, 33254, 35540, 43486, 46202, 51160, 60418, 66508, 71080, 83135, 86972, 92404, 108715, 115505, 120836, 133016, 151045, 166270, 173944, 184808, 217430, 231010, 241672, 282659, 302090, 332540, 392717, 434860, 462020, 565318, 604180, 665080, 785434, 869720, 924040, 1130636, 1208360, 1413295, 1570868, 1963585, 2261272, 2272783, 2826590, 3141736, 3927170, 4545566, 5653180, 7854340, 9091132, 11306360, 11363915, 15708680, 18182264, 22727830, 29546179, 38637311, 45455660, 59092358, 77274622, 90911320, 118184716, 147730895, 154549244, 193186555, 236369432, 295461790, 309098488, 386373110, 502285043, 590923580, 772746220, 1004570086, 1181847160, 1545492440, 2009140172, 2511425215, 4018280344, 5022850430, 10045700860, 20091401720]

約数ペア:

[(1, 20091401720), (2, 10045700860), (4, 5022850430), (5, 4018280344), (8, 2511425215), (10, 2009140172), (13, 1545492440), (17, 1181847160), (20, 1004570086), (26, 772746220), (34, 590923580), (40, 502285043), (52, 386373110), (65, 309098488), (68, 295461790), (85, 236369432), (104, 193186555), (130, 154549244), (136, 147730895), (170, 118184716), (221, 90911320), (260, 77274622), (340, 59092358), (442, 45455660), (520, 38637311), (680, 29546179), (884, 22727830), (1105, 18182264), (1279, 15708680), (1768, 11363915), (1777, 11306360), (2210, 9091132), (2558, 7854340), (3554, 5653180), (4420, 4545566), (5116, 3927170), (6395, 3141736), (7108, 2826590), (8840, 2272783), (8885, 2261272), (10232, 1963585), (12790, 1570868), (14216, 1413295), (16627, 1208360), (17770, 1130636), (21743, 924040), (23101, 869720), (25580, 785434), (30209, 665080), (33254, 604180), (35540, 565318), (43486, 462020), (46202, 434860), (51160, 392717), (60418, 332540), (66508, 302090), (71080, 282659), (83135, 241672), (86972, 231010), (92404, 217430), (108715, 184808), (115505, 173944), (120836, 166270), (133016, 151045)]