129720940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{2339}}^1$

素因数の和:2454

約数の個数: 48

約数和(自身を含む): 283046400

約数和(自身を除く): 153325460

約数列:

[1, 2, 4, 5, 10, 20, 47, 59, 94, 118, 188, 235, 236, 295, 470, 590, 940, 1180, 2339, 2773, 4678, 5546, 9356, 11092, 11695, 13865, 23390, 27730, 46780, 55460, 109933, 138001, 219866, 276002, 439732, 549665, 552004, 690005, 1099330, 1380010, 2198660, 2760020, 6486047, 12972094, 25944188, 32430235, 64860470, 129720940]

約数ペア:

[(1, 129720940), (2, 64860470), (4, 32430235), (5, 25944188), (10, 12972094), (20, 6486047), (47, 2760020), (59, 2198660), (94, 1380010), (118, 1099330), (188, 690005), (235, 552004), (236, 549665), (295, 439732), (470, 276002), (590, 219866), (940, 138001), (1180, 109933), (2339, 55460), (2773, 46780), (4678, 27730), (5546, 23390), (9356, 13865), (11092, 11695)]