20853300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5347}}^1$

素因数の和:5377

約数の個数: 72

約数和(自身を含む): 64988896

約数和(自身を除く): 44135596

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5347, 10694, 16041, 21388, 26735, 32082, 53470, 64164, 69511, 80205, 106940, 133675, 139022, 160410, 208533, 267350, 278044, 320820, 347555, 401025, 417066, 534700, 695110, 802050, 834132, 1042665, 1390220, 1604100, 1737775, 2085330, 3475550, 4170660, 5213325, 6951100, 10426650, 20853300]

約数ペア:

[(1, 20853300), (2, 10426650), (3, 6951100), (4, 5213325), (5, 4170660), (6, 3475550), (10, 2085330), (12, 1737775), (13, 1604100), (15, 1390220), (20, 1042665), (25, 834132), (26, 802050), (30, 695110), (39, 534700), (50, 417066), (52, 401025), (60, 347555), (65, 320820), (75, 278044), (78, 267350), (100, 208533), (130, 160410), (150, 139022), (156, 133675), (195, 106940), (260, 80205), (300, 69511), (325, 64164), (390, 53470), (650, 32082), (780, 26735), (975, 21388), (1300, 16041), (1950, 10694), (3900, 5347)]