81329120

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1$

素因数の和:928

約数の個数: 96

約数和(自身を含む): 209018880

約数和(自身を除く): 127689760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 76, 80, 95, 124, 152, 155, 160, 190, 248, 304, 310, 380, 496, 589, 608, 620, 760, 863, 992, 1178, 1240, 1520, 1726, 2356, 2480, 2945, 3040, 3452, 4315, 4712, 4960, 5890, 6904, 8630, 9424, 11780, 13808, 16397, 17260, 18848, 23560, 26753, 27616, 32794, 34520, 47120, 53506, 65588, 69040, 81985, 94240, 107012, 131176, 133765, 138080, 163970, 214024, 262352, 267530, 327940, 428048, 508307, 524704, 535060, 655880, 856096, 1016614, 1070120, 1311760, 2033228, 2140240, 2541535, 2623520, 4066456, 4280480, 5083070, 8132912, 10166140, 16265824, 20332280, 40664560, 81329120]

約数ペア:

[(1, 81329120), (2, 40664560), (4, 20332280), (5, 16265824), (8, 10166140), (10, 8132912), (16, 5083070), (19, 4280480), (20, 4066456), (31, 2623520), (32, 2541535), (38, 2140240), (40, 2033228), (62, 1311760), (76, 1070120), (80, 1016614), (95, 856096), (124, 655880), (152, 535060), (155, 524704), (160, 508307), (190, 428048), (248, 327940), (304, 267530), (310, 262352), (380, 214024), (496, 163970), (589, 138080), (608, 133765), (620, 131176), (760, 107012), (863, 94240), (992, 81985), (1178, 69040), (1240, 65588), (1520, 53506), (1726, 47120), (2356, 34520), (2480, 32794), (2945, 27616), (3040, 26753), (3452, 23560), (4315, 18848), (4712, 17260), (4960, 16397), (5890, 13808), (6904, 11780), (8630, 9424)]