4945120

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1043

約数の個数: 48

約数和(自身を含む): 12071808

約数和(自身を除く): 7126688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 997, 1240, 1994, 2480, 3988, 4960, 4985, 7976, 9970, 15952, 19940, 30907, 31904, 39880, 61814, 79760, 123628, 154535, 159520, 247256, 309070, 494512, 618140, 989024, 1236280, 2472560, 4945120]

約数ペア:

[(1, 4945120), (2, 2472560), (4, 1236280), (5, 989024), (8, 618140), (10, 494512), (16, 309070), (20, 247256), (31, 159520), (32, 154535), (40, 123628), (62, 79760), (80, 61814), (124, 39880), (155, 31904), (160, 30907), (248, 19940), (310, 15952), (496, 9970), (620, 7976), (992, 4985), (997, 4960), (1240, 3988), (1994, 2480)]