28138810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21157}}^1$

素因数の和:21190

約数の個数: 32

約数和(自身を含む): 60935040

約数和(自身を除く): 32796230

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 21157, 42314, 105785, 148099, 211570, 296198, 401983, 740495, 803966, 1480990, 2009915, 2813881, 4019830, 5627762, 14069405, 28138810]

約数ペア:

[(1, 28138810), (2, 14069405), (5, 5627762), (7, 4019830), (10, 2813881), (14, 2009915), (19, 1480990), (35, 803966), (38, 740495), (70, 401983), (95, 296198), (133, 211570), (190, 148099), (266, 105785), (665, 42314), (1330, 21157)]