72821840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1429}}^1$

素因数の和:1469

約数の個数: 120

約数和(自身を含む): 212252040

約数和(自身を除く): 139430200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 245, 260, 280, 364, 392, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1274, 1429, 1456, 1820, 1960, 2548, 2858, 3185, 3640, 3920, 5096, 5716, 6370, 7145, 7280, 10003, 10192, 11432, 12740, 14290, 18577, 20006, 22864, 25480, 28580, 37154, 40012, 50015, 50960, 57160, 70021, 74308, 80024, 92885, 100030, 114320, 130039, 140042, 148616, 160048, 185770, 200060, 260078, 280084, 297232, 350105, 371540, 400120, 520156, 560168, 650195, 700210, 743080, 800240, 910273, 1040312, 1120336, 1300390, 1400420, 1486160, 1820546, 2080624, 2600780, 2800840, 3641092, 4551365, 5201560, 5601680, 7282184, 9102730, 10403120, 14564368, 18205460, 36410920, 72821840]

約数ペア:

[(1, 72821840), (2, 36410920), (4, 18205460), (5, 14564368), (7, 10403120), (8, 9102730), (10, 7282184), (13, 5601680), (14, 5201560), (16, 4551365), (20, 3641092), (26, 2800840), (28, 2600780), (35, 2080624), (40, 1820546), (49, 1486160), (52, 1400420), (56, 1300390), (65, 1120336), (70, 1040312), (80, 910273), (91, 800240), (98, 743080), (104, 700210), (112, 650195), (130, 560168), (140, 520156), (182, 400120), (196, 371540), (208, 350105), (245, 297232), (260, 280084), (280, 260078), (364, 200060), (392, 185770), (455, 160048), (490, 148616), (520, 140042), (560, 130039), (637, 114320), (728, 100030), (784, 92885), (910, 80024), (980, 74308), (1040, 70021), (1274, 57160), (1429, 50960), (1456, 50015), (1820, 40012), (1960, 37154), (2548, 28580), (2858, 25480), (3185, 22864), (3640, 20006), (3920, 18577), (5096, 14290), (5716, 12740), (6370, 11432), (7145, 10192), (7280, 10003)]