20177340820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{80923}}^1$

素因数の和:81089

約数の個数: 96

約数和(自身を含む): 52531976448

約数和(自身を除く): 32354635628

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 137, 140, 182, 260, 274, 364, 455, 548, 685, 910, 959, 1370, 1781, 1820, 1918, 2740, 3562, 3836, 4795, 7124, 8905, 9590, 12467, 17810, 19180, 24934, 35620, 49868, 62335, 80923, 124670, 161846, 249340, 323692, 404615, 566461, 809230, 1051999, 1132922, 1618460, 2103998, 2265844, 2832305, 4207996, 5259995, 5664610, 7363993, 10519990, 11086451, 11329220, 14727986, 21039980, 22172902, 29455972, 36819965, 44345804, 55432255, 73639930, 77605157, 110864510, 144123863, 147279860, 155210314, 221729020, 288247726, 310420628, 388025785, 576495452, 720619315, 776051570, 1008867041, 1441238630, 1552103140, 2017734082, 2882477260, 4035468164, 5044335205, 10088670410, 20177340820]

約数ペア:

[(1, 20177340820), (2, 10088670410), (4, 5044335205), (5, 4035468164), (7, 2882477260), (10, 2017734082), (13, 1552103140), (14, 1441238630), (20, 1008867041), (26, 776051570), (28, 720619315), (35, 576495452), (52, 388025785), (65, 310420628), (70, 288247726), (91, 221729020), (130, 155210314), (137, 147279860), (140, 144123863), (182, 110864510), (260, 77605157), (274, 73639930), (364, 55432255), (455, 44345804), (548, 36819965), (685, 29455972), (910, 22172902), (959, 21039980), (1370, 14727986), (1781, 11329220), (1820, 11086451), (1918, 10519990), (2740, 7363993), (3562, 5664610), (3836, 5259995), (4795, 4207996), (7124, 2832305), (8905, 2265844), (9590, 2103998), (12467, 1618460), (17810, 1132922), (19180, 1051999), (24934, 809230), (35620, 566461), (49868, 404615), (62335, 323692), (80923, 249340), (124670, 161846)]