81231750

素因数分解:

$2^1\times 3^2\times 5^3\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:559

約数の個数: 96

約数和(自身を含む): 222917760

約数和(自身を除く): 141686010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 79, 90, 125, 150, 158, 225, 237, 250, 375, 395, 450, 457, 474, 711, 750, 790, 914, 1125, 1185, 1371, 1422, 1975, 2250, 2285, 2370, 2742, 3555, 3950, 4113, 4570, 5925, 6855, 7110, 8226, 9875, 11425, 11850, 13710, 17775, 19750, 20565, 22850, 29625, 34275, 35550, 36103, 41130, 57125, 59250, 68550, 72206, 88875, 102825, 108309, 114250, 171375, 177750, 180515, 205650, 216618, 324927, 342750, 361030, 514125, 541545, 649854, 902575, 1028250, 1083090, 1624635, 1805150, 2707725, 3249270, 4512875, 5415450, 8123175, 9025750, 13538625, 16246350, 27077250, 40615875, 81231750]

約数ペア:

[(1, 81231750), (2, 40615875), (3, 27077250), (5, 16246350), (6, 13538625), (9, 9025750), (10, 8123175), (15, 5415450), (18, 4512875), (25, 3249270), (30, 2707725), (45, 1805150), (50, 1624635), (75, 1083090), (79, 1028250), (90, 902575), (125, 649854), (150, 541545), (158, 514125), (225, 361030), (237, 342750), (250, 324927), (375, 216618), (395, 205650), (450, 180515), (457, 177750), (474, 171375), (711, 114250), (750, 108309), (790, 102825), (914, 88875), (1125, 72206), (1185, 68550), (1371, 59250), (1422, 57125), (1975, 41130), (2250, 36103), (2285, 35550), (2370, 34275), (2742, 29625), (3555, 22850), (3950, 20565), (4113, 19750), (4570, 17775), (5925, 13710), (6855, 11850), (7110, 11425), (8226, 9875)]