1999956320

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{13007}}^1$

素因数の和:13084

約数の個数: 72

約数和(自身を含む): 4882604832

約数和(自身を除く): 2882648512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 961, 992, 1240, 1922, 2480, 3844, 4805, 4960, 7688, 9610, 13007, 15376, 19220, 26014, 30752, 38440, 52028, 65035, 76880, 104056, 130070, 153760, 208112, 260140, 403217, 416224, 520280, 806434, 1040560, 1612868, 2016085, 2081120, 3225736, 4032170, 6451472, 8064340, 12499727, 12902944, 16128680, 24999454, 32257360, 49998908, 62498635, 64514720, 99997816, 124997270, 199995632, 249994540, 399991264, 499989080, 999978160, 1999956320]

約数ペア:

[(1, 1999956320), (2, 999978160), (4, 499989080), (5, 399991264), (8, 249994540), (10, 199995632), (16, 124997270), (20, 99997816), (31, 64514720), (32, 62498635), (40, 49998908), (62, 32257360), (80, 24999454), (124, 16128680), (155, 12902944), (160, 12499727), (248, 8064340), (310, 6451472), (496, 4032170), (620, 3225736), (961, 2081120), (992, 2016085), (1240, 1612868), (1922, 1040560), (2480, 806434), (3844, 520280), (4805, 416224), (4960, 403217), (7688, 260140), (9610, 208112), (13007, 153760), (15376, 130070), (19220, 104056), (26014, 76880), (30752, 65035), (38440, 52028)]