220891980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{60353}}^1$

素因数の和:60426

約数の個数: 48

約数和(自身を含む): 628647264

約数和(自身を除く): 407755284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 60353, 120706, 181059, 241412, 301765, 362118, 603530, 724236, 905295, 1207060, 1810590, 3621180, 3681533, 7363066, 11044599, 14726132, 18407665, 22089198, 36815330, 44178396, 55222995, 73630660, 110445990, 220891980]

約数ペア:

[(1, 220891980), (2, 110445990), (3, 73630660), (4, 55222995), (5, 44178396), (6, 36815330), (10, 22089198), (12, 18407665), (15, 14726132), (20, 11044599), (30, 7363066), (60, 3681533), (61, 3621180), (122, 1810590), (183, 1207060), (244, 905295), (305, 724236), (366, 603530), (610, 362118), (732, 301765), (915, 241412), (1220, 181059), (1830, 120706), (3660, 60353)]