138820480

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6997}}^1$

素因数の和:7047

約数の個数: 64

約数和(自身を含む): 342622080

約数和(自身を除く): 203801600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 6997, 9920, 13994, 19840, 27988, 34985, 55976, 69970, 111952, 139940, 216907, 223904, 279880, 433814, 447808, 559760, 867628, 895616, 1084535, 1119520, 1735256, 2169070, 2239040, 3470512, 4338140, 4478080, 6941024, 8676280, 13882048, 17352560, 27764096, 34705120, 69410240, 138820480]

約数ペア:

[(1, 138820480), (2, 69410240), (4, 34705120), (5, 27764096), (8, 17352560), (10, 13882048), (16, 8676280), (20, 6941024), (31, 4478080), (32, 4338140), (40, 3470512), (62, 2239040), (64, 2169070), (80, 1735256), (124, 1119520), (128, 1084535), (155, 895616), (160, 867628), (248, 559760), (310, 447808), (320, 433814), (496, 279880), (620, 223904), (640, 216907), (992, 139940), (1240, 111952), (1984, 69970), (2480, 55976), (3968, 34985), (4960, 27988), (6997, 19840), (9920, 13994)]