128711440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{11251}}^1$

素因数の和:11288

約数の個数: 80

約数和(自身を含む): 351602496

約数和(自身を除く): 222891056

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2860, 5720, 11251, 11440, 22502, 45004, 56255, 90008, 112510, 123761, 146263, 180016, 225020, 247522, 292526, 450040, 495044, 585052, 618805, 731315, 900080, 990088, 1170104, 1237610, 1462630, 1608893, 1980176, 2340208, 2475220, 2925260, 3217786, 4950440, 5850520, 6435572, 8044465, 9900880, 11701040, 12871144, 16088930, 25742288, 32177860, 64355720, 128711440]

約数ペア:

[(1, 128711440), (2, 64355720), (4, 32177860), (5, 25742288), (8, 16088930), (10, 12871144), (11, 11701040), (13, 9900880), (16, 8044465), (20, 6435572), (22, 5850520), (26, 4950440), (40, 3217786), (44, 2925260), (52, 2475220), (55, 2340208), (65, 1980176), (80, 1608893), (88, 1462630), (104, 1237610), (110, 1170104), (130, 990088), (143, 900080), (176, 731315), (208, 618805), (220, 585052), (260, 495044), (286, 450040), (440, 292526), (520, 247522), (572, 225020), (715, 180016), (880, 146263), (1040, 123761), (1144, 112510), (1430, 90008), (2288, 56255), (2860, 45004), (5720, 22502), (11251, 11440)]