28900060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6659}}^1$

素因数の和:6706

約数の個数: 48

約数和(自身を含む): 71608320

約数和(自身を除く): 42708260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 6659, 13318, 26636, 33295, 46613, 66590, 93226, 133180, 186452, 206429, 233065, 412858, 466130, 825716, 932260, 1032145, 1445003, 2064290, 2890006, 4128580, 5780012, 7225015, 14450030, 28900060]

約数ペア:

[(1, 28900060), (2, 14450030), (4, 7225015), (5, 5780012), (7, 4128580), (10, 2890006), (14, 2064290), (20, 1445003), (28, 1032145), (31, 932260), (35, 825716), (62, 466130), (70, 412858), (124, 233065), (140, 206429), (155, 186452), (217, 133180), (310, 93226), (434, 66590), (620, 46613), (868, 33295), (1085, 26636), (2170, 13318), (4340, 6659)]