128082280

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 294658560

約数和(自身を除く): 166576280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 173, 223, 332, 346, 415, 446, 664, 692, 830, 865, 892, 1115, 1384, 1660, 1730, 1784, 2230, 3320, 3460, 4460, 6920, 8920, 14359, 18509, 28718, 37018, 38579, 57436, 71795, 74036, 77158, 92545, 114872, 143590, 148072, 154316, 185090, 192895, 287180, 308632, 370180, 385790, 574360, 740360, 771580, 1543160, 3202057, 6404114, 12808228, 16010285, 25616456, 32020570, 64041140, 128082280]

約数ペア:

[(1, 128082280), (2, 64041140), (4, 32020570), (5, 25616456), (8, 16010285), (10, 12808228), (20, 6404114), (40, 3202057), (83, 1543160), (166, 771580), (173, 740360), (223, 574360), (332, 385790), (346, 370180), (415, 308632), (446, 287180), (664, 192895), (692, 185090), (830, 154316), (865, 148072), (892, 143590), (1115, 114872), (1384, 92545), (1660, 77158), (1730, 74036), (1784, 71795), (2230, 57436), (3320, 38579), (3460, 37018), (4460, 28718), (6920, 18509), (8920, 14359)]