71821575

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1471}}^1$

素因数の和:1525

約数の個数: 72

約数和(自身を含む): 151863296

約数和(自身を除く): 80041721

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 31, 35, 45, 63, 75, 93, 105, 155, 175, 217, 225, 279, 315, 465, 525, 651, 775, 1085, 1395, 1471, 1575, 1953, 2325, 3255, 4413, 5425, 6975, 7355, 9765, 10297, 13239, 16275, 22065, 30891, 36775, 45601, 48825, 51485, 66195, 92673, 110325, 136803, 154455, 228005, 257425, 319207, 330975, 410409, 463365, 684015, 772275, 957621, 1140025, 1596035, 2052045, 2316825, 2872863, 3420075, 4788105, 7980175, 10260225, 14364315, 23940525, 71821575]

約数ペア:

[(1, 71821575), (3, 23940525), (5, 14364315), (7, 10260225), (9, 7980175), (15, 4788105), (21, 3420075), (25, 2872863), (31, 2316825), (35, 2052045), (45, 1596035), (63, 1140025), (75, 957621), (93, 772275), (105, 684015), (155, 463365), (175, 410409), (217, 330975), (225, 319207), (279, 257425), (315, 228005), (465, 154455), (525, 136803), (651, 110325), (775, 92673), (1085, 66195), (1395, 51485), (1471, 48825), (1575, 45601), (1953, 36775), (2325, 30891), (3255, 22065), (4413, 16275), (5425, 13239), (6975, 10297), (7355, 9765)]