20453880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8971}}^1$

素因数の和:9004

約数の個数: 64

約数和(自身を含む): 64598400

約数和(自身を除く): 44144520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 8971, 17942, 26913, 35884, 44855, 53826, 71768, 89710, 107652, 134565, 170449, 179420, 215304, 269130, 340898, 358840, 511347, 538260, 681796, 852245, 1022694, 1076520, 1363592, 1704490, 2045388, 2556735, 3408980, 4090776, 5113470, 6817960, 10226940, 20453880]

約数ペア:

[(1, 20453880), (2, 10226940), (3, 6817960), (4, 5113470), (5, 4090776), (6, 3408980), (8, 2556735), (10, 2045388), (12, 1704490), (15, 1363592), (19, 1076520), (20, 1022694), (24, 852245), (30, 681796), (38, 538260), (40, 511347), (57, 358840), (60, 340898), (76, 269130), (95, 215304), (114, 179420), (120, 170449), (152, 134565), (190, 107652), (228, 89710), (285, 71768), (380, 53826), (456, 44855), (570, 35884), (760, 26913), (1140, 17942), (2280, 8971)]