20452680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56813}}^1$

素因数の和:56830

約数の個数: 48

約数和(自身を含む): 66472380

約数和(自身を除く): 46019700

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56813, 113626, 170439, 227252, 284065, 340878, 454504, 511317, 568130, 681756, 852195, 1022634, 1136260, 1363512, 1704390, 2045268, 2272520, 2556585, 3408780, 4090536, 5113170, 6817560, 10226340, 20452680]

約数ペア:

[(1, 20452680), (2, 10226340), (3, 6817560), (4, 5113170), (5, 4090536), (6, 3408780), (8, 2556585), (9, 2272520), (10, 2045268), (12, 1704390), (15, 1363512), (18, 1136260), (20, 1022634), (24, 852195), (30, 681756), (36, 568130), (40, 511317), (45, 454504), (60, 340878), (72, 284065), (90, 227252), (120, 170439), (180, 113626), (360, 56813)]