196640820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{17909}}^1$

素因数の和:17985

約数の個数: 72

約数和(自身を含む): 606289320

約数和(自身を除く): 409648500

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, 17909, 35818, 53727, 71636, 89545, 107454, 161181, 179090, 214908, 268635, 322362, 358180, 537270, 644724, 805905, 1074540, 1092449, 1611810, 2184898, 3223620, 3277347, 4369796, 5462245, 6554694, 9832041, 10924490, 13109388, 16386735, 19664082, 21848980, 32773470, 39328164, 49160205, 65546940, 98320410, 196640820]

約数ペア:

[(1, 196640820), (2, 98320410), (3, 65546940), (4, 49160205), (5, 39328164), (6, 32773470), (9, 21848980), (10, 19664082), (12, 16386735), (15, 13109388), (18, 10924490), (20, 9832041), (30, 6554694), (36, 5462245), (45, 4369796), (60, 3277347), (61, 3223620), (90, 2184898), (122, 1611810), (180, 1092449), (183, 1074540), (244, 805905), (305, 644724), (366, 537270), (549, 358180), (610, 322362), (732, 268635), (915, 214908), (1098, 179090), (1220, 161181), (1830, 107454), (2196, 89545), (2745, 71636), (3660, 53727), (5490, 35818), (10980, 17909)]