81420990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{22807}}^1$

素因数の和:22841

約数の個数: 64

約数和(自身を含む): 236473344

約数和(自身を除く): 155052354

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 21, 30, 34, 35, 42, 51, 70, 85, 102, 105, 119, 170, 210, 238, 255, 357, 510, 595, 714, 1190, 1785, 3570, 22807, 45614, 68421, 114035, 136842, 159649, 228070, 319298, 342105, 387719, 478947, 684210, 775438, 798245, 957894, 1163157, 1596490, 1938595, 2326314, 2394735, 2714033, 3877190, 4789470, 5428066, 5815785, 8142099, 11631570, 13570165, 16284198, 27140330, 40710495, 81420990]

約数ペア:

[(1, 81420990), (2, 40710495), (3, 27140330), (5, 16284198), (6, 13570165), (7, 11631570), (10, 8142099), (14, 5815785), (15, 5428066), (17, 4789470), (21, 3877190), (30, 2714033), (34, 2394735), (35, 2326314), (42, 1938595), (51, 1596490), (70, 1163157), (85, 957894), (102, 798245), (105, 775438), (119, 684210), (170, 478947), (210, 387719), (238, 342105), (255, 319298), (357, 228070), (510, 159649), (595, 136842), (714, 114035), (1190, 68421), (1785, 45614), (3570, 22807)]