42007005

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:192

約数の個数: 80

約数和(自身を含む): 81544320

約数和(自身を除く): 39537315

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 53, 57, 81, 95, 103, 135, 159, 171, 265, 285, 309, 405, 477, 513, 515, 795, 855, 927, 1007, 1431, 1539, 1545, 1957, 2385, 2565, 2781, 3021, 4293, 4635, 5035, 5459, 5871, 7155, 7695, 8343, 9063, 9785, 13905, 15105, 16377, 17613, 21465, 27189, 27295, 29355, 41715, 45315, 49131, 52839, 81567, 81885, 88065, 103721, 135945, 147393, 158517, 245655, 264195, 311163, 407835, 442179, 518605, 736965, 792585, 933489, 1555815, 2210895, 2800467, 4667445, 8401401, 14002335, 42007005]

約数ペア:

[(1, 42007005), (3, 14002335), (5, 8401401), (9, 4667445), (15, 2800467), (19, 2210895), (27, 1555815), (45, 933489), (53, 792585), (57, 736965), (81, 518605), (95, 442179), (103, 407835), (135, 311163), (159, 264195), (171, 245655), (265, 158517), (285, 147393), (309, 135945), (405, 103721), (477, 88065), (513, 81885), (515, 81567), (795, 52839), (855, 49131), (927, 45315), (1007, 41715), (1431, 29355), (1539, 27295), (1545, 27189), (1957, 21465), (2385, 17613), (2565, 16377), (2781, 15105), (3021, 13905), (4293, 9785), (4635, 9063), (5035, 8343), (5459, 7695), (5871, 7155)]