215280390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{552001}}^1$

素因数の和:552024

約数の個数: 32

約数和(自身を含む): 556418016

約数和(自身を除く): 341137626

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 552001, 1104002, 1656003, 2760005, 3312006, 5520010, 7176013, 8280015, 14352026, 16560030, 21528039, 35880065, 43056078, 71760130, 107640195, 215280390]

約数ペア:

[(1, 215280390), (2, 107640195), (3, 71760130), (5, 43056078), (6, 35880065), (10, 21528039), (13, 16560030), (15, 14352026), (26, 8280015), (30, 7176013), (39, 5520010), (65, 3312006), (78, 2760005), (130, 1656003), (195, 1104002), (390, 552001)]