81935460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2543}}^1$

素因数の和:2737

約数の個数: 72

約数和(自身を含む): 250024320

約数和(自身を除く): 168088860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 537, 716, 895, 1074, 1611, 1790, 2148, 2543, 2685, 3222, 3580, 5086, 5370, 6444, 7629, 8055, 10172, 10740, 12715, 15258, 16110, 22887, 25430, 30516, 32220, 38145, 45774, 50860, 76290, 91548, 114435, 152580, 228870, 455197, 457740, 910394, 1365591, 1820788, 2275985, 2731182, 4096773, 4551970, 5462364, 6827955, 8193546, 9103940, 13655910, 16387092, 20483865, 27311820, 40967730, 81935460]

約数ペア:

[(1, 81935460), (2, 40967730), (3, 27311820), (4, 20483865), (5, 16387092), (6, 13655910), (9, 9103940), (10, 8193546), (12, 6827955), (15, 5462364), (18, 4551970), (20, 4096773), (30, 2731182), (36, 2275985), (45, 1820788), (60, 1365591), (90, 910394), (179, 457740), (180, 455197), (358, 228870), (537, 152580), (716, 114435), (895, 91548), (1074, 76290), (1611, 50860), (1790, 45774), (2148, 38145), (2543, 32220), (2685, 30516), (3222, 25430), (3580, 22887), (5086, 16110), (5370, 15258), (6444, 12715), (7629, 10740), (8055, 10172)]