31250570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 63776160

約数和(自身を除く): 32525590

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 73, 74, 89, 130, 146, 178, 185, 365, 370, 445, 481, 730, 890, 949, 962, 1157, 1898, 2314, 2405, 2701, 3293, 4745, 4810, 5402, 5785, 6497, 6586, 9490, 11570, 12994, 13505, 16465, 27010, 32485, 32930, 35113, 42809, 64970, 70226, 84461, 85618, 168922, 175565, 214045, 240389, 351130, 422305, 428090, 480778, 844610, 1201945, 2403890, 3125057, 6250114, 15625285, 31250570]

約数ペア:

[(1, 31250570), (2, 15625285), (5, 6250114), (10, 3125057), (13, 2403890), (26, 1201945), (37, 844610), (65, 480778), (73, 428090), (74, 422305), (89, 351130), (130, 240389), (146, 214045), (178, 175565), (185, 168922), (365, 85618), (370, 84461), (445, 70226), (481, 64970), (730, 42809), (890, 35113), (949, 32930), (962, 32485), (1157, 27010), (1898, 16465), (2314, 13505), (2405, 12994), (2701, 11570), (3293, 9490), (4745, 6586), (4810, 6497), (5402, 5785)]