51396280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{7603}}^1$

素因数の和:7640

約数の個数: 48

約数和(自身を含む): 125237880

約数和(自身を除く): 73841600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 7603, 15206, 30412, 38015, 60824, 76030, 98839, 152060, 197678, 304120, 395356, 494195, 790712, 988390, 1284907, 1976780, 2569814, 3953560, 5139628, 6424535, 10279256, 12849070, 25698140, 51396280]

約数ペア:

[(1, 51396280), (2, 25698140), (4, 12849070), (5, 10279256), (8, 6424535), (10, 5139628), (13, 3953560), (20, 2569814), (26, 1976780), (40, 1284907), (52, 988390), (65, 790712), (104, 494195), (130, 395356), (169, 304120), (260, 197678), (338, 152060), (520, 98839), (676, 76030), (845, 60824), (1352, 38015), (1690, 30412), (3380, 15206), (6760, 7603)]