80181920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5507}}^1$

素因数の和:5542

約数の個数: 96

約数和(自身を含む): 233186688

約数和(自身を除く): 153004768

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1456, 1820, 2080, 2912, 3640, 5507, 7280, 11014, 14560, 22028, 27535, 38549, 44056, 55070, 71591, 77098, 88112, 110140, 143182, 154196, 176224, 192745, 220280, 286364, 308392, 357955, 385490, 440560, 501137, 572728, 616784, 715910, 770980, 881120, 1002274, 1145456, 1233568, 1431820, 1541960, 2004548, 2290912, 2505685, 2863640, 3083920, 4009096, 5011370, 5727280, 6167840, 8018192, 10022740, 11454560, 16036384, 20045480, 40090960, 80181920]

約数ペア:

[(1, 80181920), (2, 40090960), (4, 20045480), (5, 16036384), (7, 11454560), (8, 10022740), (10, 8018192), (13, 6167840), (14, 5727280), (16, 5011370), (20, 4009096), (26, 3083920), (28, 2863640), (32, 2505685), (35, 2290912), (40, 2004548), (52, 1541960), (56, 1431820), (65, 1233568), (70, 1145456), (80, 1002274), (91, 881120), (104, 770980), (112, 715910), (130, 616784), (140, 572728), (160, 501137), (182, 440560), (208, 385490), (224, 357955), (260, 308392), (280, 286364), (364, 220280), (416, 192745), (455, 176224), (520, 154196), (560, 143182), (728, 110140), (910, 88112), (1040, 77098), (1120, 71591), (1456, 55070), (1820, 44056), (2080, 38549), (2912, 27535), (3640, 22028), (5507, 14560), (7280, 11014)]