221236020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20149}}^1$

素因数の和:20225

約数の個数: 72

約数和(自身を含む): 682117800

約数和(自身を除く): 460881780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 20149, 40298, 60447, 80596, 100745, 120894, 181341, 201490, 241788, 302235, 362682, 402980, 604470, 725364, 906705, 1208940, 1229089, 1813410, 2458178, 3626820, 3687267, 4916356, 6145445, 7374534, 11061801, 12290890, 14749068, 18436335, 22123602, 24581780, 36872670, 44247204, 55309005, 73745340, 110618010, 221236020]

約数ペア:

[(1, 221236020), (2, 110618010), (3, 73745340), (4, 55309005), (5, 44247204), (6, 36872670), (9, 24581780), (10, 22123602), (12, 18436335), (15, 14749068), (18, 12290890), (20, 11061801), (30, 7374534), (36, 6145445), (45, 4916356), (60, 3687267), (61, 3626820), (90, 2458178), (122, 1813410), (180, 1229089), (183, 1208940), (244, 906705), (305, 725364), (366, 604470), (549, 402980), (610, 362682), (732, 302235), (915, 241788), (1098, 201490), (1220, 181341), (1830, 120894), (2196, 100745), (2745, 80596), (3660, 60447), (5490, 40298), (10980, 20149)]