19869760

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2003}}^1$

素因数の和:2051

約数の個数: 56

約数和(自身を含む): 48865536

約数和(自身を除く): 28995776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2003, 2480, 4006, 4960, 8012, 9920, 10015, 16024, 20030, 32048, 40060, 62093, 64096, 80120, 124186, 128192, 160240, 248372, 310465, 320480, 496744, 620930, 640960, 993488, 1241860, 1986976, 2483720, 3973952, 4967440, 9934880, 19869760]

約数ペア:

[(1, 19869760), (2, 9934880), (4, 4967440), (5, 3973952), (8, 2483720), (10, 1986976), (16, 1241860), (20, 993488), (31, 640960), (32, 620930), (40, 496744), (62, 320480), (64, 310465), (80, 248372), (124, 160240), (155, 128192), (160, 124186), (248, 80120), (310, 64096), (320, 62093), (496, 40060), (620, 32048), (992, 20030), (1240, 16024), (1984, 10015), (2003, 9920), (2480, 8012), (4006, 4960)]