71101620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:354

約数の個数: 144

約数和(自身を含む): 228206160

約数和(自身を除く): 157104540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 53, 58, 60, 87, 90, 106, 116, 145, 159, 174, 180, 212, 257, 261, 265, 290, 318, 348, 435, 477, 514, 522, 530, 580, 636, 771, 795, 870, 954, 1028, 1044, 1060, 1285, 1305, 1537, 1542, 1590, 1740, 1908, 2313, 2385, 2570, 2610, 3074, 3084, 3180, 3855, 4611, 4626, 4770, 5140, 5220, 6148, 7453, 7685, 7710, 9222, 9252, 9540, 11565, 13621, 13833, 14906, 15370, 15420, 18444, 22359, 23055, 23130, 27242, 27666, 29812, 30740, 37265, 40863, 44718, 46110, 46260, 54484, 55332, 67077, 68105, 69165, 74530, 81726, 89436, 92220, 111795, 122589, 134154, 136210, 138330, 149060, 163452, 204315, 223590, 245178, 268308, 272420, 276660, 335385, 395009, 408630, 447180, 490356, 612945, 670770, 790018, 817260, 1185027, 1225890, 1341540, 1580036, 1975045, 2370054, 2451780, 3555081, 3950090, 4740108, 5925135, 7110162, 7900180, 11850270, 14220324, 17775405, 23700540, 35550810, 71101620]

約数ペア:

[(1, 71101620), (2, 35550810), (3, 23700540), (4, 17775405), (5, 14220324), (6, 11850270), (9, 7900180), (10, 7110162), (12, 5925135), (15, 4740108), (18, 3950090), (20, 3555081), (29, 2451780), (30, 2370054), (36, 1975045), (45, 1580036), (53, 1341540), (58, 1225890), (60, 1185027), (87, 817260), (90, 790018), (106, 670770), (116, 612945), (145, 490356), (159, 447180), (174, 408630), (180, 395009), (212, 335385), (257, 276660), (261, 272420), (265, 268308), (290, 245178), (318, 223590), (348, 204315), (435, 163452), (477, 149060), (514, 138330), (522, 136210), (530, 134154), (580, 122589), (636, 111795), (771, 92220), (795, 89436), (870, 81726), (954, 74530), (1028, 69165), (1044, 68105), (1060, 67077), (1285, 55332), (1305, 54484), (1537, 46260), (1542, 46110), (1590, 44718), (1740, 40863), (1908, 37265), (2313, 30740), (2385, 29812), (2570, 27666), (2610, 27242), (3074, 23130), (3084, 23055), (3180, 22359), (3855, 18444), (4611, 15420), (4626, 15370), (4770, 14906), (5140, 13833), (5220, 13621), (6148, 11565), (7453, 9540), (7685, 9252), (7710, 9222)]