71458660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:186

約数の個数: 144

約数和(自身を含む): 193052160

約数和(自身を除く): 121593500

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 71, 79, 91, 98, 130, 140, 142, 158, 182, 196, 245, 260, 284, 316, 355, 364, 395, 455, 490, 497, 553, 637, 710, 790, 910, 923, 980, 994, 1027, 1106, 1274, 1420, 1580, 1820, 1846, 1988, 2054, 2212, 2485, 2548, 2765, 3185, 3479, 3692, 3871, 4108, 4615, 4970, 5135, 5530, 5609, 6370, 6461, 6958, 7189, 7742, 9230, 9940, 10270, 11060, 11218, 12740, 12922, 13916, 14378, 15484, 17395, 18460, 19355, 20540, 22436, 25844, 28045, 28756, 32305, 34790, 35945, 38710, 39263, 45227, 50323, 56090, 64610, 69580, 71890, 72917, 77420, 78526, 90454, 100646, 112180, 129220, 143780, 145834, 157052, 180908, 196315, 201292, 226135, 251615, 274841, 291668, 364585, 392630, 452270, 503230, 510419, 549682, 729170, 785260, 904540, 1006460, 1020838, 1099364, 1374205, 1458340, 2041676, 2552095, 2748410, 3572933, 5104190, 5496820, 7145866, 10208380, 14291732, 17864665, 35729330, 71458660]

約数ペア:

[(1, 71458660), (2, 35729330), (4, 17864665), (5, 14291732), (7, 10208380), (10, 7145866), (13, 5496820), (14, 5104190), (20, 3572933), (26, 2748410), (28, 2552095), (35, 2041676), (49, 1458340), (52, 1374205), (65, 1099364), (70, 1020838), (71, 1006460), (79, 904540), (91, 785260), (98, 729170), (130, 549682), (140, 510419), (142, 503230), (158, 452270), (182, 392630), (196, 364585), (245, 291668), (260, 274841), (284, 251615), (316, 226135), (355, 201292), (364, 196315), (395, 180908), (455, 157052), (490, 145834), (497, 143780), (553, 129220), (637, 112180), (710, 100646), (790, 90454), (910, 78526), (923, 77420), (980, 72917), (994, 71890), (1027, 69580), (1106, 64610), (1274, 56090), (1420, 50323), (1580, 45227), (1820, 39263), (1846, 38710), (1988, 35945), (2054, 34790), (2212, 32305), (2485, 28756), (2548, 28045), (2765, 25844), (3185, 22436), (3479, 20540), (3692, 19355), (3871, 18460), (4108, 17395), (4615, 15484), (4970, 14378), (5135, 13916), (5530, 12922), (5609, 12740), (6370, 11218), (6461, 11060), (6958, 10270), (7189, 9940), (7742, 9230)]